Home / 290,816,002.80-436,224,004.20-86,375,631.60

Finding the Fourth Proportional to 290,816,002.80, 436,224,004.20 and 86,375,631.60

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Solution

The fourth proportional to 290,816,002.80, 436,224,004.20 and 86,375,631.60 is: 129,563,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,816,002.80 : 436,224,004.20 = 86,375,631.60 : x
  2. Step 2: Convert to fraction form
    290,816,002.80/436,224,004.20 = 86,375,631.60/x
  3. Step 3: Cross multiply
    290,816,002.80x = 436,224,004.20 × 86,375,631.60
  4. Step 4: Simplify right side
    290,816,002.80x = 37,679,123,881,856,048
  5. Step 5: Solve for x
    x = 37,679,123,881,856,048/290,816,002.80
  6. Step 6: Final answer
    x = 129,563,447.40

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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.