Home / 83,990,711.70-125,986,067.55-69,641,804.70

Finding the Fourth Proportional to 83,990,711.70, 125,986,067.55 and 69,641,804.70

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Solution

The fourth proportional to 83,990,711.70, 125,986,067.55 and 69,641,804.70 is: 104,462,707.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,990,711.70 : 125,986,067.55 = 69,641,804.70 : x
  2. Step 2: Convert to fraction form
    83,990,711.70/125,986,067.55 = 69,641,804.70/x
  3. Step 3: Cross multiply
    83,990,711.70x = 125,986,067.55 × 69,641,804.70
  4. Step 4: Simplify right side
    83,990,711.70x = 8,773,897,111,238,108
  5. Step 5: Solve for x
    x = 8,773,897,111,238,108/83,990,711.70
  6. Step 6: Final answer
    x = 104,462,707.05

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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.