Home / 20,737,254.60-31,105,881.90-19,981,427.40

Finding the Fourth Proportional to 20,737,254.60, 31,105,881.90 and 19,981,427.40

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Solution

The fourth proportional to 20,737,254.60, 31,105,881.90 and 19,981,427.40 is: 29,972,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737,254.60 : 31,105,881.90 = 19,981,427.40 : x
  2. Step 2: Convert to fraction form
    20,737,254.60/31,105,881.90 = 19,981,427.40/x
  3. Step 3: Cross multiply
    20,737,254.60x = 31,105,881.90 × 19,981,427.40
  4. Step 4: Simplify right side
    20,737,254.60x = 621,539,920,897,824
  5. Step 5: Solve for x
    x = 621,539,920,897,824/20,737,254.60
  6. Step 6: Final answer
    x = 29,972,141.10

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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.