Home / 212,483,073.60-318,817,317.30-74,407,781.76

Finding the Fourth Proportional to 212,483,073.60, 318,817,317.30 and 74,407,781.76

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Solution

The fourth proportional to 212,483,073.60, 318,817,317.30 and 74,407,781.76 is: 111,644,136.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,483,073.60 : 318,817,317.30 = 74,407,781.76 : x
  2. Step 2: Convert to fraction form
    212,483,073.60/318,817,317.30 = 74,407,781.76/x
  3. Step 3: Cross multiply
    212,483,073.60x = 318,817,317.30 × 74,407,781.76
  4. Step 4: Simplify right side
    212,483,073.60x = 23,722,489,366,967,076
  5. Step 5: Solve for x
    x = 23,722,489,366,967,076/212,483,073.60
  6. Step 6: Final answer
    x = 111,644,136.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.