Home / 1,209,609,568.40-1,813,138,894.20-472,394,613.20

Finding the Fourth Proportional to 1,209,609,568.40, 1,813,138,894.20 and 472,394,613.20

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Solution

The fourth proportional to 1,209,609,568.40, 1,813,138,894.20 and 472,394,613.20 is: 708,093,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,609,568.40 : 1,813,138,894.20 = 472,394,613.20 : x
  2. Step 2: Convert to fraction form
    1,209,609,568.40/1,813,138,894.20 = 472,394,613.20/x
  3. Step 3: Cross multiply
    1,209,609,568.40x = 1,813,138,894.20 × 472,394,613.20
  4. Step 4: Simplify right side
    1,209,609,568.40x = 856,517,046,603,484,672
  5. Step 5: Solve for x
    x = 856,517,046,603,484,672/1,209,609,568.40
  6. Step 6: Final answer
    x = 708,093,808.93

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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.