Home / 489,948,305.40-734,922,458.10-126,442,661.40

Finding the Fourth Proportional to 489,948,305.40, 734,922,458.10 and 126,442,661.40

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Solution

The fourth proportional to 489,948,305.40, 734,922,458.10 and 126,442,661.40 is: 189,663,992.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,948,305.40 : 734,922,458.10 = 126,442,661.40 : x
  2. Step 2: Convert to fraction form
    489,948,305.40/734,922,458.10 = 126,442,661.40/x
  3. Step 3: Cross multiply
    489,948,305.40x = 734,922,458.10 × 126,442,661.40
  4. Step 4: Simplify right side
    489,948,305.40x = 92,925,551,524,794,000
  5. Step 5: Solve for x
    x = 92,925,551,524,794,000/489,948,305.40
  6. Step 6: Final answer
    x = 189,663,992.10

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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.