Home / 31,807,813.60-47,711,720.40-21,730,117.60

Finding the Fourth Proportional to 31,807,813.60, 47,711,720.40 and 21,730,117.60

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Solution

The fourth proportional to 31,807,813.60, 47,711,720.40 and 21,730,117.60 is: 32,595,176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,807,813.60 : 47,711,720.40 = 21,730,117.60 : x
  2. Step 2: Convert to fraction form
    31,807,813.60/47,711,720.40 = 21,730,117.60/x
  3. Step 3: Cross multiply
    31,807,813.60x = 47,711,720.40 × 21,730,117.60
  4. Step 4: Simplify right side
    31,807,813.60x = 1,036,781,295,190,319.12
  5. Step 5: Solve for x
    x = 1,036,781,295,190,319.12/31,807,813.60
  6. Step 6: Final answer
    x = 32,595,176.40

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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.