Home / 1,381,632,171.45-1,907,572,733.01-817,298,346.75

Finding the Fourth Proportional to 1,381,632,171.45, 1,907,572,733.01 and 817,298,346.75

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Solution

The fourth proportional to 1,381,632,171.45, 1,907,572,733.01 and 817,298,346.75 is: 1,128,416,139.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,632,171.45 : 1,907,572,733.01 = 817,298,346.75 : x
  2. Step 2: Convert to fraction form
    1,381,632,171.45/1,907,572,733.01 = 817,298,346.75/x
  3. Step 3: Cross multiply
    1,381,632,171.45x = 1,907,572,733.01 × 817,298,346.75
  4. Step 4: Simplify right side
    1,381,632,171.45x = 1,559,056,040,994,452,224
  5. Step 5: Solve for x
    x = 1,559,056,040,994,452,224/1,381,632,171.45
  6. Step 6: Final answer
    x = 1,128,416,139.41

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Half scale
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Double scale
Find fourth proportional to 1,381,632,172.45, 1,907,572,734.39 and 817,298,347.75
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.