Home / 80,910,219.60-121,365,329.40-80,406,334.80

Finding the Fourth Proportional to 80,910,219.60, 121,365,329.40 and 80,406,334.80

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Solution

The fourth proportional to 80,910,219.60, 121,365,329.40 and 80,406,334.80 is: 120,609,502.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,910,219.60 : 121,365,329.40 = 80,406,334.80 : x
  2. Step 2: Convert to fraction form
    80,910,219.60/121,365,329.40 = 80,406,334.80/x
  3. Step 3: Cross multiply
    80,910,219.60x = 121,365,329.40 × 80,406,334.80
  4. Step 4: Simplify right side
    80,910,219.60x = 9,758,541,308,848,684
  5. Step 5: Solve for x
    x = 9,758,541,308,848,684/80,910,219.60
  6. Step 6: Final answer
    x = 120,609,502.20

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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.