Home / 5,400,875.88-8,102,119.38-1,988,900.13

Finding the Fourth Proportional to 5,400,875.88, 8,102,119.38 and 1,988,900.13

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Solution

The fourth proportional to 5,400,875.88, 8,102,119.38 and 1,988,900.13 is: 2,983,646.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400,875.88 : 8,102,119.38 = 1,988,900.13 : x
  2. Step 2: Convert to fraction form
    5,400,875.88/8,102,119.38 = 1,988,900.13/x
  3. Step 3: Cross multiply
    5,400,875.88x = 8,102,119.38 × 1,988,900.13
  4. Step 4: Simplify right side
    5,400,875.88x = 16,114,306,288,157.52
  5. Step 5: Solve for x
    x = 16,114,306,288,157.52/5,400,875.88
  6. Step 6: Final answer
    x = 2,983,646.85

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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.