Home / 80,933,329.80-121,399,994.70-72,430,273.80

Finding the Fourth Proportional to 80,933,329.80, 121,399,994.70 and 72,430,273.80

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Solution

The fourth proportional to 80,933,329.80, 121,399,994.70 and 72,430,273.80 is: 108,645,410.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,933,329.80 : 121,399,994.70 = 72,430,273.80 : x
  2. Step 2: Convert to fraction form
    80,933,329.80/121,399,994.70 = 72,430,273.80/x
  3. Step 3: Cross multiply
    80,933,329.80x = 121,399,994.70 × 72,430,273.80
  4. Step 4: Simplify right side
    80,933,329.80x = 8,793,034,855,439,549
  5. Step 5: Solve for x
    x = 8,793,034,855,439,549/80,933,329.80
  6. Step 6: Final answer
    x = 108,645,410.70

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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.