Home / 285,534,751.19-428,303,604.52-129,979,773.16

Finding the Fourth Proportional to 285,534,751.19, 428,303,604.52 and 129,979,773.16

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Solution

The fourth proportional to 285,534,751.19, 428,303,604.52 and 129,979,773.16 is: 194,970,332.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,534,751.19 : 428,303,604.52 = 129,979,773.16 : x
  2. Step 2: Convert to fraction form
    285,534,751.19/428,303,604.52 = 129,979,773.16/x
  3. Step 3: Cross multiply
    285,534,751.19x = 428,303,604.52 × 129,979,773.16
  4. Step 4: Simplify right side
    285,534,751.19x = 55,670,805,358,211,664
  5. Step 5: Solve for x
    x = 55,670,805,358,211,664/285,534,751.19
  6. Step 6: Final answer
    x = 194,970,332.43

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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.