Home / 12,449,956.40-18,618,947.40-10,434,417.20

Finding the Fourth Proportional to 12,449,956.40, 18,618,947.40 and 10,434,417.20

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Solution

The fourth proportional to 12,449,956.40, 18,618,947.40 and 10,434,417.20 is: 15,604,702.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449,956.40 : 18,618,947.40 = 10,434,417.20 : x
  2. Step 2: Convert to fraction form
    12,449,956.40/18,618,947.40 = 10,434,417.20/x
  3. Step 3: Cross multiply
    12,449,956.40x = 18,618,947.40 × 10,434,417.20
  4. Step 4: Simplify right side
    12,449,956.40x = 194,277,864,996,455.25
  5. Step 5: Solve for x
    x = 194,277,864,996,455.25/12,449,956.40
  6. Step 6: Final answer
    x = 15,604,702.44

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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.