Home / 20,693,721.20-31,043,862.30-7,048,153.40

Finding the Fourth Proportional to 20,693,721.20, 31,043,862.30 and 7,048,153.40

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Solution

The fourth proportional to 20,693,721.20, 31,043,862.30 and 7,048,153.40 is: 10,573,347.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693,721.20 : 31,043,862.30 = 7,048,153.40 : x
  2. Step 2: Convert to fraction form
    20,693,721.20/31,043,862.30 = 7,048,153.40/x
  3. Step 3: Cross multiply
    20,693,721.20x = 31,043,862.30 × 7,048,153.40
  4. Step 4: Simplify right side
    20,693,721.20x = 218,801,903,618,876.84
  5. Step 5: Solve for x
    x = 218,801,903,618,876.84/20,693,721.20
  6. Step 6: Final answer
    x = 10,573,347.42

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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.