Home / 20,838,248.40-28,747,622.48-12,573,700.88

Finding the Fourth Proportional to 20,838,248.40, 28,747,622.48 and 12,573,700.88

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Solution

The fourth proportional to 20,838,248.40, 28,747,622.48 and 12,573,700.88 is: 17,346,179.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838,248.40 : 28,747,622.48 = 12,573,700.88 : x
  2. Step 2: Convert to fraction form
    20,838,248.40/28,747,622.48 = 12,573,700.88/x
  3. Step 3: Cross multiply
    20,838,248.40x = 28,747,622.48 × 12,573,700.88
  4. Step 4: Simplify right side
    20,838,248.40x = 361,464,006,074,683.81
  5. Step 5: Solve for x
    x = 361,464,006,074,683.81/20,838,248.40
  6. Step 6: Final answer
    x = 17,346,179.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.