Home / 387,901,660.33-581,838,318.55-115,265,341.45

Finding the Fourth Proportional to 387,901,660.33, 581,838,318.55 and 115,265,341.45

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Solution

The fourth proportional to 387,901,660.33, 581,838,318.55 and 115,265,341.45 is: 172,893,800.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,901,660.33 : 581,838,318.55 = 115,265,341.45 : x
  2. Step 2: Convert to fraction form
    387,901,660.33/581,838,318.55 = 115,265,341.45/x
  3. Step 3: Cross multiply
    387,901,660.33x = 581,838,318.55 × 115,265,341.45
  4. Step 4: Simplify right side
    387,901,660.33x = 67,065,792,456,359,616
  5. Step 5: Solve for x
    x = 67,065,792,456,359,616/387,901,660.33
  6. Step 6: Final answer
    x = 172,893,800.97

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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.