Home / 131,004,054.20-196,506,081.30-90,189,385.40

Finding the Fourth Proportional to 131,004,054.20, 196,506,081.30 and 90,189,385.40

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Solution

The fourth proportional to 131,004,054.20, 196,506,081.30 and 90,189,385.40 is: 135,284,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,004,054.20 : 196,506,081.30 = 90,189,385.40 : x
  2. Step 2: Convert to fraction form
    131,004,054.20/196,506,081.30 = 90,189,385.40/x
  3. Step 3: Cross multiply
    131,004,054.20x = 196,506,081.30 × 90,189,385.40
  4. Step 4: Simplify right side
    131,004,054.20x = 17,722,762,699,809,436
  5. Step 5: Solve for x
    x = 17,722,762,699,809,436/131,004,054.20
  6. Step 6: Final answer
    x = 135,284,078.10

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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.