Home / 145,599,794.80-218,399,692.20-129,727,423.60

Finding the Fourth Proportional to 145,599,794.80, 218,399,692.20 and 129,727,423.60

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Solution

The fourth proportional to 145,599,794.80, 218,399,692.20 and 129,727,423.60 is: 194,591,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,599,794.80 : 218,399,692.20 = 129,727,423.60 : x
  2. Step 2: Convert to fraction form
    145,599,794.80/218,399,692.20 = 129,727,423.60/x
  3. Step 3: Cross multiply
    145,599,794.80x = 218,399,692.20 × 129,727,423.60
  4. Step 4: Simplify right side
    145,599,794.80x = 28,332,429,384,139,012
  5. Step 5: Solve for x
    x = 28,332,429,384,139,012/145,599,794.80
  6. Step 6: Final answer
    x = 194,591,135.40

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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.