Home / 145,073,606.60-217,468,692.30-129,768,105.80

Finding the Fourth Proportional to 145,073,606.60, 217,468,692.30 and 129,768,105.80

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Solution

The fourth proportional to 145,073,606.60, 217,468,692.30 and 129,768,105.80 is: 194,525,392.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,073,606.60 : 217,468,692.30 = 129,768,105.80 : x
  2. Step 2: Convert to fraction form
    145,073,606.60/217,468,692.30 = 129,768,105.80/x
  3. Step 3: Cross multiply
    145,073,606.60x = 217,468,692.30 × 129,768,105.80
  4. Step 4: Simplify right side
    145,073,606.60x = 28,220,500,270,574,048
  5. Step 5: Solve for x
    x = 28,220,500,270,574,048/145,073,606.60
  6. Step 6: Final answer
    x = 194,525,392.54

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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.