Home / 1,292,162,416.80-1,938,243,625.20-776,184,381.60

Finding the Fourth Proportional to 1,292,162,416.80, 1,938,243,625.20 and 776,184,381.60

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Solution

The fourth proportional to 1,292,162,416.80, 1,938,243,625.20 and 776,184,381.60 is: 1,164,276,572.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,162,416.80 : 1,938,243,625.20 = 776,184,381.60 : x
  2. Step 2: Convert to fraction form
    1,292,162,416.80/1,938,243,625.20 = 776,184,381.60/x
  3. Step 3: Cross multiply
    1,292,162,416.80x = 1,938,243,625.20 × 776,184,381.60
  4. Step 4: Simplify right side
    1,292,162,416.80x = 1,504,434,429,616,004,352
  5. Step 5: Solve for x
    x = 1,504,434,429,616,004,352/1,292,162,416.80
  6. Step 6: Final answer
    x = 1,164,276,572.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.