Home / 145,073,617.60-217,468,708.80-129,768,116.80

Finding the Fourth Proportional to 145,073,617.60, 217,468,708.80 and 129,768,116.80

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Solution

The fourth proportional to 145,073,617.60, 217,468,708.80 and 129,768,116.80 is: 194,525,409.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,073,617.60 : 217,468,708.80 = 129,768,116.80 : x
  2. Step 2: Convert to fraction form
    145,073,617.60/217,468,708.80 = 129,768,116.80/x
  3. Step 3: Cross multiply
    145,073,617.60x = 217,468,708.80 × 129,768,116.80
  4. Step 4: Simplify right side
    145,073,617.60x = 28,220,504,803,903,588
  5. Step 5: Solve for x
    x = 28,220,504,803,903,588/145,073,617.60
  6. Step 6: Final answer
    x = 194,525,409.04

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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.