Home / 31,505,937.90-47,164,428.45-18,719,861.10

Finding the Fourth Proportional to 31,505,937.90, 47,164,428.45 and 18,719,861.10

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Solution

The fourth proportional to 31,505,937.90, 47,164,428.45 and 18,719,861.10 is: 28,023,655.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,505,937.90 : 47,164,428.45 = 18,719,861.10 : x
  2. Step 2: Convert to fraction form
    31,505,937.90/47,164,428.45 = 18,719,861.10/x
  3. Step 3: Cross multiply
    31,505,937.90x = 47,164,428.45 × 18,719,861.10
  4. Step 4: Simplify right side
    31,505,937.90x = 882,911,549,444,888.38
  5. Step 5: Solve for x
    x = 882,911,549,444,888.38/31,505,937.90
  6. Step 6: Final answer
    x = 28,023,655.49

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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.