Home / 91,843,569.60-137,765,543.88-86,231,552.64

Finding the Fourth Proportional to 91,843,569.60, 137,765,543.88 and 86,231,552.64

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Solution

The fourth proportional to 91,843,569.60, 137,765,543.88 and 86,231,552.64 is: 129,347,506.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,843,569.60 : 137,765,543.88 = 86,231,552.64 : x
  2. Step 2: Convert to fraction form
    91,843,569.60/137,765,543.88 = 86,231,552.64/x
  3. Step 3: Cross multiply
    91,843,569.60x = 137,765,543.88 × 86,231,552.64
  4. Step 4: Simplify right side
    91,843,569.60x = 11,879,736,749,066,450
  5. Step 5: Solve for x
    x = 11,879,736,749,066,450/91,843,569.60
  6. Step 6: Final answer
    x = 129,347,506.86

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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.