Home / 77,545,806.80-107,008,846.92-42,738,390.32

Finding the Fourth Proportional to 77,545,806.80, 107,008,846.92 and 42,738,390.32

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Solution

The fourth proportional to 77,545,806.80, 107,008,846.92 and 42,738,390.32 is: 58,976,572.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,545,806.80 : 107,008,846.92 = 42,738,390.32 : x
  2. Step 2: Convert to fraction form
    77,545,806.80/107,008,846.92 = 42,738,390.32/x
  3. Step 3: Cross multiply
    77,545,806.80x = 107,008,846.92 × 42,738,390.32
  4. Step 4: Simplify right side
    77,545,806.80x = 4,573,385,867,360,090
  5. Step 5: Solve for x
    x = 4,573,385,867,360,090/77,545,806.80
  6. Step 6: Final answer
    x = 58,976,572.12

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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.