Home / 28,779,731.30-39,720,080.14-18,322,407.20

Finding the Fourth Proportional to 28,779,731.30, 39,720,080.14 and 18,322,407.20

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Solution

The fourth proportional to 28,779,731.30, 39,720,080.14 and 18,322,407.20 is: 25,287,500.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779,731.30 : 39,720,080.14 = 18,322,407.20 : x
  2. Step 2: Convert to fraction form
    28,779,731.30/39,720,080.14 = 18,322,407.20/x
  3. Step 3: Cross multiply
    28,779,731.30x = 39,720,080.14 × 18,322,407.20
  4. Step 4: Simplify right side
    28,779,731.30x = 727,767,482,097,306.62
  5. Step 5: Solve for x
    x = 727,767,482,097,306.62/28,779,731.30
  6. Step 6: Final answer
    x = 25,287,500.94

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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.