Home / 260,749,920.60-391,177,368.90-76,517,040.60

Finding the Fourth Proportional to 260,749,920.60, 391,177,368.90 and 76,517,040.60

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Solution

The fourth proportional to 260,749,920.60, 391,177,368.90 and 76,517,040.60 is: 114,790,963.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,749,920.60 : 391,177,368.90 = 76,517,040.60 : x
  2. Step 2: Convert to fraction form
    260,749,920.60/391,177,368.90 = 76,517,040.60/x
  3. Step 3: Cross multiply
    260,749,920.60x = 391,177,368.90 × 76,517,040.60
  4. Step 4: Simplify right side
    260,749,920.60x = 29,931,734,617,922,472
  5. Step 5: Solve for x
    x = 29,931,734,617,922,472/260,749,920.60
  6. Step 6: Final answer
    x = 114,790,963.50

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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.