Home / 117,431,421.40-176,147,132.10-85,014,832.60

Finding the Fourth Proportional to 117,431,421.40, 176,147,132.10 and 85,014,832.60

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Solution

The fourth proportional to 117,431,421.40, 176,147,132.10 and 85,014,832.60 is: 127,522,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,431,421.40 : 176,147,132.10 = 85,014,832.60 : x
  2. Step 2: Convert to fraction form
    117,431,421.40/176,147,132.10 = 85,014,832.60/x
  3. Step 3: Cross multiply
    117,431,421.40x = 176,147,132.10 × 85,014,832.60
  4. Step 4: Simplify right side
    117,431,421.40x = 14,975,118,948,451,584
  5. Step 5: Solve for x
    x = 14,975,118,948,451,584/117,431,421.40
  6. Step 6: Final answer
    x = 127,522,248.90

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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.