Home / 82,928,139.40-124,392,209.10-39,790,001.80

Finding the Fourth Proportional to 82,928,139.40, 124,392,209.10 and 39,790,001.80

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Solution

The fourth proportional to 82,928,139.40, 124,392,209.10 and 39,790,001.80 is: 59,685,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,928,139.40 : 124,392,209.10 = 39,790,001.80 : x
  2. Step 2: Convert to fraction form
    82,928,139.40/124,392,209.10 = 39,790,001.80/x
  3. Step 3: Cross multiply
    82,928,139.40x = 124,392,209.10 × 39,790,001.80
  4. Step 4: Simplify right side
    82,928,139.40x = 4,949,566,223,994,976
  5. Step 5: Solve for x
    x = 4,949,566,223,994,976/82,928,139.40
  6. Step 6: Final answer
    x = 59,685,002.70

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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.