Home / 239,589,781,125.40-359,406,764,681.17-78,242,033,520.65

Finding the Fourth Proportional to 239,589,781,125.40, 359,406,764,681.17 and 78,242,033,520.65

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Solution

The fourth proportional to 239,589,781,125.40, 359,406,764,681.17 and 78,242,033,520.65 is: 117,370,265,115.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,589,781,125.40 : 359,406,764,681.17 = 78,242,033,520.65 : x
  2. Step 2: Convert to fraction form
    239,589,781,125.40/359,406,764,681.17 = 78,242,033,520.65/x
  3. Step 3: Cross multiply
    239,589,781,125.40x = 359,406,764,681.17 × 78,242,033,520.65
  4. Step 4: Simplify right side
    239,589,781,125.40x = 28,120,716,129,730,673,246,208
  5. Step 5: Solve for x
    x = 28,120,716,129,730,673,246,208/239,589,781,125.40
  6. Step 6: Final answer
    x = 117,370,265,115.83

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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.