Home / 72,707,386.65-100,332,689.98-39,665,669.85

Finding the Fourth Proportional to 72,707,386.65, 100,332,689.98 and 39,665,669.85

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Solution

The fourth proportional to 72,707,386.65, 100,332,689.98 and 39,665,669.85 is: 54,736,713.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,707,386.65 : 100,332,689.98 = 39,665,669.85 : x
  2. Step 2: Convert to fraction form
    72,707,386.65/100,332,689.98 = 39,665,669.85/x
  3. Step 3: Cross multiply
    72,707,386.65x = 100,332,689.98 × 39,665,669.85
  4. Step 4: Simplify right side
    72,707,386.65x = 3,979,763,355,909,083.50
  5. Step 5: Solve for x
    x = 3,979,763,355,909,083.50/72,707,386.65
  6. Step 6: Final answer
    x = 54,736,713.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.