Home / 272,291,430.80-408,384,002.10-90,538,608.80

Finding the Fourth Proportional to 272,291,430.80, 408,384,002.10 and 90,538,608.80

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Solution

The fourth proportional to 272,291,430.80, 408,384,002.10 and 90,538,608.80 is: 135,790,242.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,291,430.80 : 408,384,002.10 = 90,538,608.80 : x
  2. Step 2: Convert to fraction form
    272,291,430.80/408,384,002.10 = 90,538,608.80/x
  3. Step 3: Cross multiply
    272,291,430.80x = 408,384,002.10 × 90,538,608.80
  4. Step 4: Simplify right side
    272,291,430.80x = 36,974,519,406,310,280
  5. Step 5: Solve for x
    x = 36,974,519,406,310,280/272,291,430.80
  6. Step 6: Final answer
    x = 135,790,242.45

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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.