Home / 13,862,070.40-20,789,995.20-6,669,931.36

Finding the Fourth Proportional to 13,862,070.40, 20,789,995.20 and 6,669,931.36

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Solution

The fourth proportional to 13,862,070.40, 20,789,995.20 and 6,669,931.36 is: 10,003,400.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862,070.40 : 20,789,995.20 = 6,669,931.36 : x
  2. Step 2: Convert to fraction form
    13,862,070.40/20,789,995.20 = 6,669,931.36/x
  3. Step 3: Cross multiply
    13,862,070.40x = 20,789,995.20 × 6,669,931.36
  4. Step 4: Simplify right side
    13,862,070.40x = 138,667,840,958,729.47
  5. Step 5: Solve for x
    x = 138,667,840,958,729.47/13,862,070.40
  6. Step 6: Final answer
    x = 10,003,400.43

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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.