Home / 159,891,768.26-239,926,335.10-78,011,319.32

Finding the Fourth Proportional to 159,891,768.26, 239,926,335.10 and 78,011,319.32

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Solution

The fourth proportional to 159,891,768.26, 239,926,335.10 and 78,011,319.32 is: 117,060,247.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,891,768.26 : 239,926,335.10 = 78,011,319.32 : x
  2. Step 2: Convert to fraction form
    159,891,768.26/239,926,335.10 = 78,011,319.32/x
  3. Step 3: Cross multiply
    159,891,768.26x = 239,926,335.10 × 78,011,319.32
  4. Step 4: Simplify right side
    159,891,768.26x = 18,716,969,939,368,764
  5. Step 5: Solve for x
    x = 18,716,969,939,368,764/159,891,768.26
  6. Step 6: Final answer
    x = 117,060,247.34

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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.