Home / 72,462,318.92-99,998,434.98-39,422,805.06

Finding the Fourth Proportional to 72,462,318.92, 99,998,434.98 and 39,422,805.06

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Solution

The fourth proportional to 72,462,318.92, 99,998,434.98 and 39,422,805.06 is: 54,403,707.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,462,318.92 : 99,998,434.98 = 39,422,805.06 : x
  2. Step 2: Convert to fraction form
    72,462,318.92/99,998,434.98 = 39,422,805.06/x
  3. Step 3: Cross multiply
    72,462,318.92x = 99,998,434.98 × 39,422,805.06
  4. Step 4: Simplify right side
    72,462,318.92x = 3,942,218,808,521,625.50
  5. Step 5: Solve for x
    x = 3,942,218,808,521,625.50/72,462,318.92
  6. Step 6: Final answer
    x = 54,403,707.57

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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.