Home / 57,387,808.89-79,194,531.42-31,281,753.87

Finding the Fourth Proportional to 57,387,808.89, 79,194,531.42 and 31,281,753.87

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Solution

The fourth proportional to 57,387,808.89, 79,194,531.42 and 31,281,753.87 is: 43,168,468.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,387,808.89 : 79,194,531.42 = 31,281,753.87 : x
  2. Step 2: Convert to fraction form
    57,387,808.89/79,194,531.42 = 31,281,753.87/x
  3. Step 3: Cross multiply
    57,387,808.89x = 79,194,531.42 × 31,281,753.87
  4. Step 4: Simplify right side
    57,387,808.89x = 2,477,343,839,730,421.50
  5. Step 5: Solve for x
    x = 2,477,343,839,730,421.50/57,387,808.89
  6. Step 6: Final answer
    x = 43,168,468.84

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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.