Home / 72,104,502.61-99,504,078.97-39,065,572.89

Finding the Fourth Proportional to 72,104,502.61, 99,504,078.97 and 39,065,572.89

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Solution

The fourth proportional to 72,104,502.61, 99,504,078.97 and 39,065,572.89 is: 53,910,417.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,104,502.61 : 99,504,078.97 = 39,065,572.89 : x
  2. Step 2: Convert to fraction form
    72,104,502.61/99,504,078.97 = 39,065,572.89/x
  3. Step 3: Cross multiply
    72,104,502.61x = 99,504,078.97 × 39,065,572.89
  4. Step 4: Simplify right side
    72,104,502.61x = 3,887,183,849,854,851
  5. Step 5: Solve for x
    x = 3,887,183,849,854,851/72,104,502.61
  6. Step 6: Final answer
    x = 53,910,417.65

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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.