Home / 77,523,690.90-106,987,459.05-42,716,372.25

Finding the Fourth Proportional to 77,523,690.90, 106,987,459.05 and 42,716,372.25

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Solution

The fourth proportional to 77,523,690.90, 106,987,459.05 and 42,716,372.25 is: 58,951,219.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,523,690.90 : 106,987,459.05 = 42,716,372.25 : x
  2. Step 2: Convert to fraction form
    77,523,690.90/106,987,459.05 = 42,716,372.25/x
  3. Step 3: Cross multiply
    77,523,690.90x = 106,987,459.05 × 42,716,372.25
  4. Step 4: Simplify right side
    77,523,690.90x = 4,570,116,126,861,431
  5. Step 5: Solve for x
    x = 4,570,116,126,861,431/77,523,690.90
  6. Step 6: Final answer
    x = 58,951,219.61

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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.