Home / 260,807,828.40-391,211,742.60-124,758,932.40

Finding the Fourth Proportional to 260,807,828.40, 391,211,742.60 and 124,758,932.40

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Solution

The fourth proportional to 260,807,828.40, 391,211,742.60 and 124,758,932.40 is: 187,138,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,807,828.40 : 391,211,742.60 = 124,758,932.40 : x
  2. Step 2: Convert to fraction form
    260,807,828.40/391,211,742.60 = 124,758,932.40/x
  3. Step 3: Cross multiply
    260,807,828.40x = 391,211,742.60 × 124,758,932.40
  4. Step 4: Simplify right side
    260,807,828.40x = 48,807,159,349,119,608
  5. Step 5: Solve for x
    x = 48,807,159,349,119,608/260,807,828.40
  6. Step 6: Final answer
    x = 187,138,398.60

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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.