Home / 20,806,662.40-31,209,993.60-7,344,851.20

Finding the Fourth Proportional to 20,806,662.40, 31,209,993.60 and 7,344,851.20

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Solution

The fourth proportional to 20,806,662.40, 31,209,993.60 and 7,344,851.20 is: 11,017,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806,662.40 : 31,209,993.60 = 7,344,851.20 : x
  2. Step 2: Convert to fraction form
    20,806,662.40/31,209,993.60 = 7,344,851.20/x
  3. Step 3: Cross multiply
    20,806,662.40x = 31,209,993.60 × 7,344,851.20
  4. Step 4: Simplify right side
    20,806,662.40x = 229,232,758,944,952.34
  5. Step 5: Solve for x
    x = 229,232,758,944,952.34/20,806,662.40
  6. Step 6: Final answer
    x = 11,017,276.80

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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.