Home / 131,109,004.20-196,506,042.30-54,392,543.40

Finding the Fourth Proportional to 131,109,004.20, 196,506,042.30 and 54,392,543.40

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Solution

The fourth proportional to 131,109,004.20, 196,506,042.30 and 54,392,543.40 is: 81,523,488.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,109,004.20 : 196,506,042.30 = 54,392,543.40 : x
  2. Step 2: Convert to fraction form
    131,109,004.20/196,506,042.30 = 54,392,543.40/x
  3. Step 3: Cross multiply
    131,109,004.20x = 196,506,042.30 × 54,392,543.40
  4. Step 4: Simplify right side
    131,109,004.20x = 10,688,463,434,164,986
  5. Step 5: Solve for x
    x = 10,688,463,434,164,986/131,109,004.20
  6. Step 6: Final answer
    x = 81,523,488.79

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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.