Home / 80,930,003.70-121,395,005.55-56,271,141.30

Finding the Fourth Proportional to 80,930,003.70, 121,395,005.55 and 56,271,141.30

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Solution

The fourth proportional to 80,930,003.70, 121,395,005.55 and 56,271,141.30 is: 84,406,711.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,930,003.70 : 121,395,005.55 = 56,271,141.30 : x
  2. Step 2: Convert to fraction form
    80,930,003.70/121,395,005.55 = 56,271,141.30/x
  3. Step 3: Cross multiply
    80,930,003.70x = 121,395,005.55 × 56,271,141.30
  4. Step 4: Simplify right side
    80,930,003.70x = 6,831,035,510,418,334
  5. Step 5: Solve for x
    x = 6,831,035,510,418,334/80,930,003.70
  6. Step 6: Final answer
    x = 84,406,711.95

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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.