Home / 86,230,007.40-129,156,054.30-76,656,196.20

Finding the Fourth Proportional to 86,230,007.40, 129,156,054.30 and 76,656,196.20

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Solution

The fourth proportional to 86,230,007.40, 129,156,054.30 and 76,656,196.20 is: 114,816,316.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,230,007.40 : 129,156,054.30 = 76,656,196.20 : x
  2. Step 2: Convert to fraction form
    86,230,007.40/129,156,054.30 = 76,656,196.20/x
  3. Step 3: Cross multiply
    86,230,007.40x = 129,156,054.30 × 76,656,196.20
  4. Step 4: Simplify right side
    86,230,007.40x = 9,900,611,838,838,654
  5. Step 5: Solve for x
    x = 9,900,611,838,838,654/86,230,007.40
  6. Step 6: Final answer
    x = 114,816,316.70

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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.