Home / 77,668,623.92-107,184,973.37-42,388,691.85

Finding the Fourth Proportional to 77,668,623.92, 107,184,973.37 and 42,388,691.85

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Solution

The fourth proportional to 77,668,623.92, 107,184,973.37 and 42,388,691.85 is: 58,497,634.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,668,623.92 : 107,184,973.37 = 42,388,691.85 : x
  2. Step 2: Convert to fraction form
    77,668,623.92/107,184,973.37 = 42,388,691.85/x
  3. Step 3: Cross multiply
    77,668,623.92x = 107,184,973.37 × 42,388,691.85
  4. Step 4: Simplify right side
    77,668,623.92x = 4,543,430,807,131,386
  5. Step 5: Solve for x
    x = 4,543,430,807,131,386/77,668,623.92
  6. Step 6: Final answer
    x = 58,497,634.92

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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.