Home / 82,943,987.20-124,356,998.40-31,806,246.40

Finding the Fourth Proportional to 82,943,987.20, 124,356,998.40 and 31,806,246.40

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Solution

The fourth proportional to 82,943,987.20, 124,356,998.40 and 31,806,246.40 is: 47,686,751.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,943,987.20 : 124,356,998.40 = 31,806,246.40 : x
  2. Step 2: Convert to fraction form
    82,943,987.20/124,356,998.40 = 31,806,246.40/x
  3. Step 3: Cross multiply
    82,943,987.20x = 124,356,998.40 × 31,806,246.40
  4. Step 4: Simplify right side
    82,943,987.20x = 3,955,329,332,674,806
  5. Step 5: Solve for x
    x = 3,955,329,332,674,806/82,943,987.20
  6. Step 6: Final answer
    x = 47,686,751.82

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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.