Home / 91,890,246.30-137,835,369.45-45,973,743.90

Finding the Fourth Proportional to 91,890,246.30, 137,835,369.45 and 45,973,743.90

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Solution

The fourth proportional to 91,890,246.30, 137,835,369.45 and 45,973,743.90 is: 68,960,615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,890,246.30 : 137,835,369.45 = 45,973,743.90 : x
  2. Step 2: Convert to fraction form
    91,890,246.30/137,835,369.45 = 45,973,743.90/x
  3. Step 3: Cross multiply
    91,890,246.30x = 137,835,369.45 × 45,973,743.90
  4. Step 4: Simplify right side
    91,890,246.30x = 6,336,807,975,456,183
  5. Step 5: Solve for x
    x = 6,336,807,975,456,183/91,890,246.30
  6. Step 6: Final answer
    x = 68,960,615.85

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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.