Home / 5,121,781.40-7,068,043.74-2,829,925.76

Finding the Fourth Proportional to 5,121,781.40, 7,068,043.74 and 2,829,925.76

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Solution

The fourth proportional to 5,121,781.40, 7,068,043.74 and 2,829,925.76 is: 3,905,289.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121,781.40 : 7,068,043.74 = 2,829,925.76 : x
  2. Step 2: Convert to fraction form
    5,121,781.40/7,068,043.74 = 2,829,925.76/x
  3. Step 3: Cross multiply
    5,121,781.40x = 7,068,043.74 × 2,829,925.76
  4. Step 4: Simplify right side
    5,121,781.40x = 20,002,039,052,632.74
  5. Step 5: Solve for x
    x = 20,002,039,052,632.74/5,121,781.40
  6. Step 6: Final answer
    x = 3,905,289.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.