Home / 28,517,159.80-42,786,237.30-9,348,542.20

Finding the Fourth Proportional to 28,517,159.80, 42,786,237.30 and 9,348,542.20

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Solution

The fourth proportional to 28,517,159.80, 42,786,237.30 and 9,348,542.20 is: 14,026,254.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517,159.80 : 42,786,237.30 = 9,348,542.20 : x
  2. Step 2: Convert to fraction form
    28,517,159.80/42,786,237.30 = 9,348,542.20/x
  3. Step 3: Cross multiply
    28,517,159.80x = 42,786,237.30 × 9,348,542.20
  4. Step 4: Simplify right side
    28,517,159.80x = 399,988,944,978,264
  5. Step 5: Solve for x
    x = 399,988,944,978,264/28,517,159.80
  6. Step 6: Final answer
    x = 14,026,254.64

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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.