Home / 1,275,609,993.40-1,913,414,990.10-306,261,609.40

Finding the Fourth Proportional to 1,275,609,993.40, 1,913,414,990.10 and 306,261,609.40

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Solution

The fourth proportional to 1,275,609,993.40, 1,913,414,990.10 and 306,261,609.40 is: 459,392,414.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,609,993.40 : 1,913,414,990.10 = 306,261,609.40 : x
  2. Step 2: Convert to fraction form
    1,275,609,993.40/1,913,414,990.10 = 306,261,609.40/x
  3. Step 3: Cross multiply
    1,275,609,993.40x = 1,913,414,990.10 × 306,261,609.40
  4. Step 4: Simplify right side
    1,275,609,993.40x = 586,005,554,318,110,976
  5. Step 5: Solve for x
    x = 586,005,554,318,110,976/1,275,609,993.40
  6. Step 6: Final answer
    x = 459,392,414.10

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1.5x scale

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.