Home / 77,136,803.38-106,451,857.74-42,330,739.42

Finding the Fourth Proportional to 77,136,803.38, 106,451,857.74 and 42,330,739.42

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Solution

The fourth proportional to 77,136,803.38, 106,451,857.74 and 42,330,739.42 is: 58,418,104.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,136,803.38 : 106,451,857.74 = 42,330,739.42 : x
  2. Step 2: Convert to fraction form
    77,136,803.38/106,451,857.74 = 42,330,739.42/x
  3. Step 3: Cross multiply
    77,136,803.38x = 106,451,857.74 × 42,330,739.42
  4. Step 4: Simplify right side
    77,136,803.38x = 4,506,185,850,766,850
  5. Step 5: Solve for x
    x = 4,506,185,850,766,850/77,136,803.38
  6. Step 6: Final answer
    x = 58,418,104.63

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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.