Home / 38,779,504.18-53,515,702.72-21,376,140.04

Finding the Fourth Proportional to 38,779,504.18, 53,515,702.72 and 21,376,140.04

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Solution

The fourth proportional to 38,779,504.18, 53,515,702.72 and 21,376,140.04 is: 29,499,066.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,779,504.18 : 53,515,702.72 = 21,376,140.04 : x
  2. Step 2: Convert to fraction form
    38,779,504.18/53,515,702.72 = 21,376,140.04/x
  3. Step 3: Cross multiply
    38,779,504.18x = 53,515,702.72 × 21,376,140.04
  4. Step 4: Simplify right side
    38,779,504.18x = 1,143,959,155,481,045
  5. Step 5: Solve for x
    x = 1,143,959,155,481,045/38,779,504.18
  6. Step 6: Final answer
    x = 29,499,066.05

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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.