Home / 28,538,128.80-42,749,132.40-17,722,231.20

Finding the Fourth Proportional to 28,538,128.80, 42,749,132.40 and 17,722,231.20

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Solution

The fourth proportional to 28,538,128.80, 42,749,132.40 and 17,722,231.20 is: 26,547,290.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,538,128.80 : 42,749,132.40 = 17,722,231.20 : x
  2. Step 2: Convert to fraction form
    28,538,128.80/42,749,132.40 = 17,722,231.20/x
  3. Step 3: Cross multiply
    28,538,128.80x = 42,749,132.40 × 17,722,231.20
  4. Step 4: Simplify right side
    28,538,128.80x = 757,610,007,992,210.88
  5. Step 5: Solve for x
    x = 757,610,007,992,210.88/28,538,128.80
  6. Step 6: Final answer
    x = 26,547,290.93

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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.