Home / 126,017,771.61-173,788,954.12-86,382,901.83

Finding the Fourth Proportional to 126,017,771.61, 173,788,954.12 and 86,382,901.83

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Solution

The fourth proportional to 126,017,771.61, 173,788,954.12 and 86,382,901.83 is: 119,129,182.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,017,771.61 : 173,788,954.12 = 86,382,901.83 : x
  2. Step 2: Convert to fraction form
    126,017,771.61/173,788,954.12 = 86,382,901.83/x
  3. Step 3: Cross multiply
    126,017,771.61x = 173,788,954.12 × 86,382,901.83
  4. Step 4: Simplify right side
    126,017,771.61x = 15,012,394,162,886,334
  5. Step 5: Solve for x
    x = 15,012,394,162,886,334/126,017,771.61
  6. Step 6: Final answer
    x = 119,129,182.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.