Home / 239,589,781,149.81-359,406,764,717.79-78,242,033,545.05

Finding the Fourth Proportional to 239,589,781,149.81, 359,406,764,717.79 and 78,242,033,545.05

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Solution

The fourth proportional to 239,589,781,149.81, 359,406,764,717.79 and 78,242,033,545.05 is: 117,370,265,152.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,589,781,149.81 : 359,406,764,717.79 = 78,242,033,545.05 : x
  2. Step 2: Convert to fraction form
    239,589,781,149.81/359,406,764,717.79 = 78,242,033,545.05/x
  3. Step 3: Cross multiply
    239,589,781,149.81x = 359,406,764,717.79 × 78,242,033,545.05
  4. Step 4: Simplify right side
    239,589,781,149.81x = 28,120,716,141,367,216,046,080
  5. Step 5: Solve for x
    x = 28,120,716,141,367,216,046,080/239,589,781,149.81
  6. Step 6: Final answer
    x = 117,370,265,152.44

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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.