Home / 80,888,938.80-121,333,408.20-67,436,838.50

Finding the Fourth Proportional to 80,888,938.80, 121,333,408.20 and 67,436,838.50

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Solution

The fourth proportional to 80,888,938.80, 121,333,408.20 and 67,436,838.50 is: 101,155,257.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,888,938.80 : 121,333,408.20 = 67,436,838.50 : x
  2. Step 2: Convert to fraction form
    80,888,938.80/121,333,408.20 = 67,436,838.50/x
  3. Step 3: Cross multiply
    80,888,938.80x = 121,333,408.20 × 67,436,838.50
  4. Step 4: Simplify right side
    80,888,938.80x = 8,182,341,453,437,976
  5. Step 5: Solve for x
    x = 8,182,341,453,437,976/80,888,938.80
  6. Step 6: Final answer
    x = 101,155,257.75

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1.5x scale

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.