Home / 31,435,612.80-47,153,419.20-13,260,330.60

Finding the Fourth Proportional to 31,435,612.80, 47,153,419.20 and 13,260,330.60

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Solution

The fourth proportional to 31,435,612.80, 47,153,419.20 and 13,260,330.60 is: 19,890,495.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,435,612.80 : 47,153,419.20 = 13,260,330.60 : x
  2. Step 2: Convert to fraction form
    31,435,612.80/47,153,419.20 = 13,260,330.60/x
  3. Step 3: Cross multiply
    31,435,612.80x = 47,153,419.20 × 13,260,330.60
  4. Step 4: Simplify right side
    31,435,612.80x = 625,269,927,512,387.50
  5. Step 5: Solve for x
    x = 625,269,927,512,387.50/31,435,612.80
  6. Step 6: Final answer
    x = 19,890,495.90

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1.5x scale

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.