Home / 28,779,720.48-39,712,189.68-18,480,395.52

Finding the Fourth Proportional to 28,779,720.48, 39,712,189.68 and 18,480,395.52

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Solution

The fourth proportional to 28,779,720.48, 39,712,189.68 and 18,480,395.52 is: 25,500,489.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779,720.48 : 39,712,189.68 = 18,480,395.52 : x
  2. Step 2: Convert to fraction form
    28,779,720.48/39,712,189.68 = 18,480,395.52/x
  3. Step 3: Cross multiply
    28,779,720.48x = 39,712,189.68 × 18,480,395.52
  4. Step 4: Simplify right side
    28,779,720.48x = 733,896,972,251,662.25
  5. Step 5: Solve for x
    x = 733,896,972,251,662.25/28,779,720.48
  6. Step 6: Final answer
    x = 25,500,489.93

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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.