Home / 12,302,952.70-18,454,429.05-5,128,499.20

Finding the Fourth Proportional to 12,302,952.70, 18,454,429.05 and 5,128,499.20

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Solution

The fourth proportional to 12,302,952.70, 18,454,429.05 and 5,128,499.20 is: 7,692,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302,952.70 : 18,454,429.05 = 5,128,499.20 : x
  2. Step 2: Convert to fraction form
    12,302,952.70/18,454,429.05 = 5,128,499.20/x
  3. Step 3: Cross multiply
    12,302,952.70x = 18,454,429.05 × 5,128,499.20
  4. Step 4: Simplify right side
    12,302,952.70x = 94,643,524,619,381.77
  5. Step 5: Solve for x
    x = 94,643,524,619,381.77/12,302,952.70
  6. Step 6: Final answer
    x = 7,692,748.80

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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.