Home / 20,736,030.80-31,104,046.20-19,224,376.40

Finding the Fourth Proportional to 20,736,030.80, 31,104,046.20 and 19,224,376.40

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Solution

The fourth proportional to 20,736,030.80, 31,104,046.20 and 19,224,376.40 is: 28,836,564.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,030.80 : 31,104,046.20 = 19,224,376.40 : x
  2. Step 2: Convert to fraction form
    20,736,030.80/31,104,046.20 = 19,224,376.40/x
  3. Step 3: Cross multiply
    20,736,030.80x = 31,104,046.20 × 19,224,376.40
  4. Step 4: Simplify right side
    20,736,030.80x = 597,955,891,711,789.62
  5. Step 5: Solve for x
    x = 597,955,891,711,789.62/20,736,030.80
  6. Step 6: Final answer
    x = 28,836,564.60

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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.