Home / 279,908,854.20-419,863,281.30-75,436,929.45

Finding the Fourth Proportional to 279,908,854.20, 419,863,281.30 and 75,436,929.45

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Solution

The fourth proportional to 279,908,854.20, 419,863,281.30 and 75,436,929.45 is: 113,155,394.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,908,854.20 : 419,863,281.30 = 75,436,929.45 : x
  2. Step 2: Convert to fraction form
    279,908,854.20/419,863,281.30 = 75,436,929.45/x
  3. Step 3: Cross multiply
    279,908,854.20x = 419,863,281.30 × 75,436,929.45
  4. Step 4: Simplify right side
    279,908,854.20x = 31,673,196,730,073,608
  5. Step 5: Solve for x
    x = 31,673,196,730,073,608/279,908,854.20
  6. Step 6: Final answer
    x = 113,155,394.18

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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.