Home / 28,528,296.72-42,716,860.96-15,036,781.20

Finding the Fourth Proportional to 28,528,296.72, 42,716,860.96 and 15,036,781.20

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Solution

The fourth proportional to 28,528,296.72, 42,716,860.96 and 15,036,781.20 is: 22,515,332.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528,296.72 : 42,716,860.96 = 15,036,781.20 : x
  2. Step 2: Convert to fraction form
    28,528,296.72/42,716,860.96 = 15,036,781.20/x
  3. Step 3: Cross multiply
    28,528,296.72x = 42,716,860.96 × 15,036,781.20
  4. Step 4: Simplify right side
    28,528,296.72x = 642,324,091,806,341.88
  5. Step 5: Solve for x
    x = 642,324,091,806,341.88/28,528,296.72
  6. Step 6: Final answer
    x = 22,515,332.69

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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.