Home / 78,405,555.98-108,195,223.14-43,597,499.08

Finding the Fourth Proportional to 78,405,555.98, 108,195,223.14 and 43,597,499.08

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Solution

The fourth proportional to 78,405,555.98, 108,195,223.14 and 43,597,499.08 is: 60,162,077.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,405,555.98 : 108,195,223.14 = 43,597,499.08 : x
  2. Step 2: Convert to fraction form
    78,405,555.98/108,195,223.14 = 43,597,499.08/x
  3. Step 3: Cross multiply
    78,405,555.98x = 108,195,223.14 × 43,597,499.08
  4. Step 4: Simplify right side
    78,405,555.98x = 4,717,041,141,306,545
  5. Step 5: Solve for x
    x = 4,717,041,141,306,545/78,405,555.98
  6. Step 6: Final answer
    x = 60,162,077.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.