Home / 261,360,656.40-391,946,506.20-131,925,248.40

Finding the Fourth Proportional to 261,360,656.40, 391,946,506.20 and 131,925,248.40

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Solution

The fourth proportional to 261,360,656.40, 391,946,506.20 and 131,925,248.40 is: 197,840,183.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,360,656.40 : 391,946,506.20 = 131,925,248.40 : x
  2. Step 2: Convert to fraction form
    261,360,656.40/391,946,506.20 = 131,925,248.40/x
  3. Step 3: Cross multiply
    261,360,656.40x = 391,946,506.20 × 131,925,248.40
  4. Step 4: Simplify right side
    261,360,656.40x = 51,707,640,189,947,144
  5. Step 5: Solve for x
    x = 51,707,640,189,947,144/261,360,656.40
  6. Step 6: Final answer
    x = 197,840,183.38

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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.