Home / 15,172,878.40-22,759,317.60-13,791,131.80

Finding the Fourth Proportional to 15,172,878.40, 22,759,317.60 and 13,791,131.80

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Solution

The fourth proportional to 15,172,878.40, 22,759,317.60 and 13,791,131.80 is: 20,686,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,172,878.40 : 22,759,317.60 = 13,791,131.80 : x
  2. Step 2: Convert to fraction form
    15,172,878.40/22,759,317.60 = 13,791,131.80/x
  3. Step 3: Cross multiply
    15,172,878.40x = 22,759,317.60 × 13,791,131.80
  4. Step 4: Simplify right side
    15,172,878.40x = 313,876,748,699,659.69
  5. Step 5: Solve for x
    x = 313,876,748,699,659.69/15,172,878.40
  6. Step 6: Final answer
    x = 20,686,697.70

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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.