Home / 20,806,660.90-31,209,991.35-7,344,849.70

Finding the Fourth Proportional to 20,806,660.90, 31,209,991.35 and 7,344,849.70

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Solution

The fourth proportional to 20,806,660.90, 31,209,991.35 and 7,344,849.70 is: 11,017,274.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806,660.90 : 31,209,991.35 = 7,344,849.70 : x
  2. Step 2: Convert to fraction form
    20,806,660.90/31,209,991.35 = 7,344,849.70/x
  3. Step 3: Cross multiply
    20,806,660.90x = 31,209,991.35 × 7,344,849.70
  4. Step 4: Simplify right side
    20,806,660.90x = 229,232,695,604,050.12
  5. Step 5: Solve for x
    x = 229,232,695,604,050.12/20,806,660.90
  6. Step 6: Final answer
    x = 11,017,274.55

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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.