Home / 12,948,961.70-19,423,442.55-4,428,020.90

Finding the Fourth Proportional to 12,948,961.70, 19,423,442.55 and 4,428,020.90

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Solution

The fourth proportional to 12,948,961.70, 19,423,442.55 and 4,428,020.90 is: 6,642,031.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,961.70 : 19,423,442.55 = 4,428,020.90 : x
  2. Step 2: Convert to fraction form
    12,948,961.70/19,423,442.55 = 4,428,020.90/x
  3. Step 3: Cross multiply
    12,948,961.70x = 19,423,442.55 × 4,428,020.90
  4. Step 4: Simplify right side
    12,948,961.70x = 86,007,409,561,349.31
  5. Step 5: Solve for x
    x = 86,007,409,561,349.31/12,948,961.70
  6. Step 6: Final answer
    x = 6,642,031.35

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1.5x scale

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.