Home / 805,894,807.70-1,208,842,211.55-260,691,454.10

Finding the Fourth Proportional to 805,894,807.70, 1,208,842,211.55 and 260,691,454.10

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Solution

The fourth proportional to 805,894,807.70, 1,208,842,211.55 and 260,691,454.10 is: 391,037,181.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,894,807.70 : 1,208,842,211.55 = 260,691,454.10 : x
  2. Step 2: Convert to fraction form
    805,894,807.70/1,208,842,211.55 = 260,691,454.10/x
  3. Step 3: Cross multiply
    805,894,807.70x = 1,208,842,211.55 × 260,691,454.10
  4. Step 4: Simplify right side
    805,894,807.70x = 315,134,833,906,429,312
  5. Step 5: Solve for x
    x = 315,134,833,906,429,312/805,894,807.70
  6. Step 6: Final answer
    x = 391,037,181.15

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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.