Home / 704,831,092.80-1,057,246,639.20-429,332,078.40

Finding the Fourth Proportional to 704,831,092.80, 1,057,246,639.20 and 429,332,078.40

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Solution

The fourth proportional to 704,831,092.80, 1,057,246,639.20 and 429,332,078.40 is: 643,998,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,831,092.80 : 1,057,246,639.20 = 429,332,078.40 : x
  2. Step 2: Convert to fraction form
    704,831,092.80/1,057,246,639.20 = 429,332,078.40/x
  3. Step 3: Cross multiply
    704,831,092.80x = 1,057,246,639.20 × 429,332,078.40
  4. Step 4: Simplify right side
    704,831,092.80x = 453,909,896,989,150,912
  5. Step 5: Solve for x
    x = 453,909,896,989,150,912/704,831,092.80
  6. Step 6: Final answer
    x = 643,998,117.60

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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.