Home / 18,534,720.80-27,779,962.80-7,752,000.80

Finding the Fourth Proportional to 18,534,720.80, 27,779,962.80 and 7,752,000.80

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Solution

The fourth proportional to 18,534,720.80, 27,779,962.80 and 7,752,000.80 is: 11,618,750.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,534,720.80 : 27,779,962.80 = 7,752,000.80 : x
  2. Step 2: Convert to fraction form
    18,534,720.80/27,779,962.80 = 7,752,000.80/x
  3. Step 3: Cross multiply
    18,534,720.80x = 27,779,962.80 × 7,752,000.80
  4. Step 4: Simplify right side
    18,534,720.80x = 215,350,293,849,570.25
  5. Step 5: Solve for x
    x = 215,350,293,849,570.25/18,534,720.80
  6. Step 6: Final answer
    x = 11,618,750.35

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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.