Home / 86,364,744.80-129,569,806.88-31,038,167.20

Finding the Fourth Proportional to 86,364,744.80, 129,569,806.88 and 31,038,167.20

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Solution

The fourth proportional to 86,364,744.80, 129,569,806.88 and 31,038,167.20 is: 46,565,405.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,364,744.80 : 129,569,806.88 = 31,038,167.20 : x
  2. Step 2: Convert to fraction form
    86,364,744.80/129,569,806.88 = 31,038,167.20/x
  3. Step 3: Cross multiply
    86,364,744.80x = 129,569,806.88 × 31,038,167.20
  4. Step 4: Simplify right side
    86,364,744.80x = 4,021,609,330,013,150
  5. Step 5: Solve for x
    x = 4,021,609,330,013,150/86,364,744.80
  6. Step 6: Final answer
    x = 46,565,405.12

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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.