Home / 80,482,756.20-111,139,989.22-51,123,547.88

Finding the Fourth Proportional to 80,482,756.20, 111,139,989.22 and 51,123,547.88

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Solution

The fourth proportional to 80,482,756.20, 111,139,989.22 and 51,123,547.88 is: 70,597,365.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,482,756.20 : 111,139,989.22 = 51,123,547.88 : x
  2. Step 2: Convert to fraction form
    80,482,756.20/111,139,989.22 = 51,123,547.88/x
  3. Step 3: Cross multiply
    80,482,756.20x = 111,139,989.22 × 51,123,547.88
  4. Step 4: Simplify right side
    80,482,756.20x = 5,681,870,560,271,354
  5. Step 5: Solve for x
    x = 5,681,870,560,271,354/80,482,756.20
  6. Step 6: Final answer
    x = 70,597,365.55

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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.