Home / 31,729,631.20-47,594,446.80-28,644,114.40

Finding the Fourth Proportional to 31,729,631.20, 47,594,446.80 and 28,644,114.40

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Solution

The fourth proportional to 31,729,631.20, 47,594,446.80 and 28,644,114.40 is: 42,966,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,729,631.20 : 47,594,446.80 = 28,644,114.40 : x
  2. Step 2: Convert to fraction form
    31,729,631.20/47,594,446.80 = 28,644,114.40/x
  3. Step 3: Cross multiply
    31,729,631.20x = 47,594,446.80 × 28,644,114.40
  4. Step 4: Simplify right side
    31,729,631.20x = 1,363,300,778,943,913.75
  5. Step 5: Solve for x
    x = 1,363,300,778,943,913.75/31,729,631.20
  6. Step 6: Final answer
    x = 42,966,171.60

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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.