Home / 1,311,276,491.50-1,809,746,129.69-834,814,662.19

Finding the Fourth Proportional to 1,311,276,491.50, 1,809,746,129.69 and 834,814,662.19

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Solution

The fourth proportional to 1,311,276,491.50, 1,809,746,129.69 and 834,814,662.19 is: 1,152,161,739.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,276,491.50 : 1,809,746,129.69 = 834,814,662.19 : x
  2. Step 2: Convert to fraction form
    1,311,276,491.50/1,809,746,129.69 = 834,814,662.19/x
  3. Step 3: Cross multiply
    1,311,276,491.50x = 1,809,746,129.69 × 834,814,662.19
  4. Step 4: Simplify right side
    1,311,276,491.50x = 1,510,802,603,904,380,160
  5. Step 5: Solve for x
    x = 1,510,802,603,904,380,160/1,311,276,491.50
  6. Step 6: Final answer
    x = 1,152,161,739.88

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Half scale
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Double scale
Find fourth proportional to 1,311,276,492.50, 1,809,746,131.07 and 834,814,663.19
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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.