Home / 86,364,718.80-129,569,767.80-31,038,141.12

Finding the Fourth Proportional to 86,364,718.80, 129,569,767.80 and 31,038,141.12

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Solution

The fourth proportional to 86,364,718.80, 129,569,767.80 and 31,038,141.12 is: 46,565,365.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,364,718.80 : 129,569,767.80 = 31,038,141.12 : x
  2. Step 2: Convert to fraction form
    86,364,718.80/129,569,767.80 = 31,038,141.12/x
  3. Step 3: Cross multiply
    86,364,718.80x = 129,569,767.80 × 31,038,141.12
  4. Step 4: Simplify right side
    86,364,718.80x = 4,021,604,737,862,032
  5. Step 5: Solve for x
    x = 4,021,604,737,862,032/86,364,718.80
  6. Step 6: Final answer
    x = 46,565,365.97

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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.