Home / 290,372,002.80-435,558,004.20-145,253,180.40

Finding the Fourth Proportional to 290,372,002.80, 435,558,004.20 and 145,253,180.40

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Solution

The fourth proportional to 290,372,002.80, 435,558,004.20 and 145,253,180.40 is: 217,879,770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,372,002.80 : 435,558,004.20 = 145,253,180.40 : x
  2. Step 2: Convert to fraction form
    290,372,002.80/435,558,004.20 = 145,253,180.40/x
  3. Step 3: Cross multiply
    290,372,002.80x = 435,558,004.20 × 145,253,180.40
  4. Step 4: Simplify right side
    290,372,002.80x = 63,266,185,358,726,560
  5. Step 5: Solve for x
    x = 63,266,185,358,726,560/290,372,002.80
  6. Step 6: Final answer
    x = 217,879,770.60

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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.