Home / 12,948,892.80-19,423,339.20-3,972,278.40

Finding the Fourth Proportional to 12,948,892.80, 19,423,339.20 and 3,972,278.40

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Solution

The fourth proportional to 12,948,892.80, 19,423,339.20 and 3,972,278.40 is: 5,958,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,892.80 : 19,423,339.20 = 3,972,278.40 : x
  2. Step 2: Convert to fraction form
    12,948,892.80/19,423,339.20 = 3,972,278.40/x
  3. Step 3: Cross multiply
    12,948,892.80x = 19,423,339.20 × 3,972,278.40
  4. Step 4: Simplify right side
    12,948,892.80x = 77,154,910,760,033.28
  5. Step 5: Solve for x
    x = 77,154,910,760,033.28/12,948,892.80
  6. Step 6: Final answer
    x = 5,958,417.60

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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.