Home / 28,755,287.40-43,132,931.10-13,638,743.40

Finding the Fourth Proportional to 28,755,287.40, 43,132,931.10 and 13,638,743.40

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Solution

The fourth proportional to 28,755,287.40, 43,132,931.10 and 13,638,743.40 is: 20,458,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,755,287.40 : 43,132,931.10 = 13,638,743.40 : x
  2. Step 2: Convert to fraction form
    28,755,287.40/43,132,931.10 = 13,638,743.40/x
  3. Step 3: Cross multiply
    28,755,287.40x = 43,132,931.10 × 13,638,743.40
  4. Step 4: Simplify right side
    28,755,287.40x = 588,278,979,362,779.75
  5. Step 5: Solve for x
    x = 588,278,979,362,779.75/28,755,287.40
  6. Step 6: Final answer
    x = 20,458,115.10

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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.