Home / 20,806,659.90-31,209,989.85-7,344,848.70

Finding the Fourth Proportional to 20,806,659.90, 31,209,989.85 and 7,344,848.70

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Solution

The fourth proportional to 20,806,659.90, 31,209,989.85 and 7,344,848.70 is: 11,017,273.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806,659.90 : 31,209,989.85 = 7,344,848.70 : x
  2. Step 2: Convert to fraction form
    20,806,659.90/31,209,989.85 = 7,344,848.70/x
  3. Step 3: Cross multiply
    20,806,659.90x = 31,209,989.85 × 7,344,848.70
  4. Step 4: Simplify right side
    20,806,659.90x = 229,232,653,376,785.72
  5. Step 5: Solve for x
    x = 229,232,653,376,785.72/20,806,659.90
  6. Step 6: Final answer
    x = 11,017,273.05

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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.