Home / 72,221,854.60-99,666,348.64-39,182,102.04

Finding the Fourth Proportional to 72,221,854.60, 99,666,348.64 and 39,182,102.04

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Solution

The fourth proportional to 72,221,854.60, 99,666,348.64 and 39,182,102.04 is: 54,071,403.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,221,854.60 : 99,666,348.64 = 39,182,102.04 : x
  2. Step 2: Convert to fraction form
    72,221,854.60/99,666,348.64 = 39,182,102.04/x
  3. Step 3: Cross multiply
    72,221,854.60x = 99,666,348.64 × 39,182,102.04
  4. Step 4: Simplify right side
    72,221,854.60x = 3,905,137,042,366,695
  5. Step 5: Solve for x
    x = 3,905,137,042,366,695/72,221,854.60
  6. Step 6: Final answer
    x = 54,071,403.51

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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.