Home / 81,206,701.40-121,810,052.10-62,074,825.40

Finding the Fourth Proportional to 81,206,701.40, 121,810,052.10 and 62,074,825.40

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Solution

The fourth proportional to 81,206,701.40, 121,810,052.10 and 62,074,825.40 is: 93,112,238.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,206,701.40 : 121,810,052.10 = 62,074,825.40 : x
  2. Step 2: Convert to fraction form
    81,206,701.40/121,810,052.10 = 62,074,825.40/x
  3. Step 3: Cross multiply
    81,206,701.40x = 121,810,052.10 × 62,074,825.40
  4. Step 4: Simplify right side
    81,206,701.40x = 7,561,337,716,072,403
  5. Step 5: Solve for x
    x = 7,561,337,716,072,403/81,206,701.40
  6. Step 6: Final answer
    x = 93,112,238.10

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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.