Home / 38,420,702.32-53,021,834.40-21,016,650.28

Finding the Fourth Proportional to 38,420,702.32, 53,021,834.40 and 21,016,650.28

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Solution

The fourth proportional to 38,420,702.32, 53,021,834.40 and 21,016,650.28 is: 29,003,669.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,420,702.32 : 53,021,834.40 = 21,016,650.28 : x
  2. Step 2: Convert to fraction form
    38,420,702.32/53,021,834.40 = 21,016,650.28/x
  3. Step 3: Cross multiply
    38,420,702.32x = 53,021,834.40 × 21,016,650.28
  4. Step 4: Simplify right side
    38,420,702.32x = 1,114,341,350,788,873.62
  5. Step 5: Solve for x
    x = 1,114,341,350,788,873.62/38,420,702.32
  6. Step 6: Final answer
    x = 29,003,669.47

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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.