Home / 20,806,655.40-31,209,983.10-7,344,844.20

Finding the Fourth Proportional to 20,806,655.40, 31,209,983.10 and 7,344,844.20

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Solution

The fourth proportional to 20,806,655.40, 31,209,983.10 and 7,344,844.20 is: 11,017,266.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806,655.40 : 31,209,983.10 = 7,344,844.20 : x
  2. Step 2: Convert to fraction form
    20,806,655.40/31,209,983.10 = 7,344,844.20/x
  3. Step 3: Cross multiply
    20,806,655.40x = 31,209,983.10 × 7,344,844.20
  4. Step 4: Simplify right side
    20,806,655.40x = 229,232,463,354,133.03
  5. Step 5: Solve for x
    x = 229,232,463,354,133.03/20,806,655.40
  6. Step 6: Final answer
    x = 11,017,266.30

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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.