Home / 21,019,088.20-31,542,629.10-9,653,686.60

Finding the Fourth Proportional to 21,019,088.20, 31,542,629.10 and 9,653,686.60

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Solution

The fourth proportional to 21,019,088.20, 31,542,629.10 and 9,653,686.60 is: 14,486,958.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019,088.20 : 31,542,629.10 = 9,653,686.60 : x
  2. Step 2: Convert to fraction form
    21,019,088.20/31,542,629.10 = 9,653,686.60/x
  3. Step 3: Cross multiply
    21,019,088.20x = 31,542,629.10 × 9,653,686.60
  4. Step 4: Simplify right side
    21,019,088.20x = 304,502,655,871,440.06
  5. Step 5: Solve for x
    x = 304,502,655,871,440.06/21,019,088.20
  6. Step 6: Final answer
    x = 14,486,958.38

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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.