Home / 12,948,721.70-19,423,082.55-4,428,299.30

Finding the Fourth Proportional to 12,948,721.70, 19,423,082.55 and 4,428,299.30

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Solution

The fourth proportional to 12,948,721.70, 19,423,082.55 and 4,428,299.30 is: 6,642,448.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,721.70 : 19,423,082.55 = 4,428,299.30 : x
  2. Step 2: Convert to fraction form
    12,948,721.70/19,423,082.55 = 4,428,299.30/x
  3. Step 3: Cross multiply
    12,948,721.70x = 19,423,082.55 × 4,428,299.30
  4. Step 4: Simplify right side
    12,948,721.70x = 86,011,222,860,007.22
  5. Step 5: Solve for x
    x = 86,011,222,860,007.22/12,948,721.70
  6. Step 6: Final answer
    x = 6,642,448.95

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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.