Home / 18,985,857.40-28,480,114.38-9,398,661.76

Finding the Fourth Proportional to 18,985,857.40, 28,480,114.38 and 9,398,661.76

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Solution

The fourth proportional to 18,985,857.40, 28,480,114.38 and 9,398,661.76 is: 14,098,650.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985,857.40 : 28,480,114.38 = 9,398,661.76 : x
  2. Step 2: Convert to fraction form
    18,985,857.40/28,480,114.38 = 9,398,661.76/x
  3. Step 3: Cross multiply
    18,985,857.40x = 28,480,114.38 × 9,398,661.76
  4. Step 4: Simplify right side
    18,985,857.40x = 267,674,961,943,732.09
  5. Step 5: Solve for x
    x = 267,674,961,943,732.09/18,985,857.40
  6. Step 6: Final answer
    x = 14,098,650.18

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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.