Home / 31,548,035.40-47,322,053.10-12,379,417.80

Finding the Fourth Proportional to 31,548,035.40, 47,322,053.10 and 12,379,417.80

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Solution

The fourth proportional to 31,548,035.40, 47,322,053.10 and 12,379,417.80 is: 18,569,126.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,548,035.40 : 47,322,053.10 = 12,379,417.80 : x
  2. Step 2: Convert to fraction form
    31,548,035.40/47,322,053.10 = 12,379,417.80/x
  3. Step 3: Cross multiply
    31,548,035.40x = 47,322,053.10 × 12,379,417.80
  4. Step 4: Simplify right side
    31,548,035.40x = 585,819,466,478,685.25
  5. Step 5: Solve for x
    x = 585,819,466,478,685.25/31,548,035.40
  6. Step 6: Final answer
    x = 18,569,126.70

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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.