Home / 21,246,430.30-31,916,884.65-20,443,363.90

Finding the Fourth Proportional to 21,246,430.30, 31,916,884.65 and 20,443,363.90

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Solution

The fourth proportional to 21,246,430.30, 31,916,884.65 and 20,443,363.90 is: 30,710,499.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246,430.30 : 31,916,884.65 = 20,443,363.90 : x
  2. Step 2: Convert to fraction form
    21,246,430.30/31,916,884.65 = 20,443,363.90/x
  3. Step 3: Cross multiply
    21,246,430.30x = 31,916,884.65 × 20,443,363.90
  4. Step 4: Simplify right side
    21,246,430.30x = 652,488,487,454,274
  5. Step 5: Solve for x
    x = 652,488,487,454,274/21,246,430.30
  6. Step 6: Final answer
    x = 30,710,499.52

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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.