Home / 80,930,007.70-121,395,011.55-56,271,145.30

Finding the Fourth Proportional to 80,930,007.70, 121,395,011.55 and 56,271,145.30

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Solution

The fourth proportional to 80,930,007.70, 121,395,011.55 and 56,271,145.30 is: 84,406,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,930,007.70 : 121,395,011.55 = 56,271,145.30 : x
  2. Step 2: Convert to fraction form
    80,930,007.70/121,395,011.55 = 56,271,145.30/x
  3. Step 3: Cross multiply
    80,930,007.70x = 121,395,011.55 × 56,271,145.30
  4. Step 4: Simplify right side
    80,930,007.70x = 6,831,036,333,625,228
  5. Step 5: Solve for x
    x = 6,831,036,333,625,228/80,930,007.70
  6. Step 6: Final answer
    x = 84,406,717.95

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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.