Home / 2,911,658,660.40-4,367,487,990.60-1,279,071,908.40

Finding the Fourth Proportional to 2,911,658,660.40, 4,367,487,990.60 and 1,279,071,908.40

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Solution

The fourth proportional to 2,911,658,660.40, 4,367,487,990.60 and 1,279,071,908.40 is: 1,918,607,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911,658,660.40 : 4,367,487,990.60 = 1,279,071,908.40 : x
  2. Step 2: Convert to fraction form
    2,911,658,660.40/4,367,487,990.60 = 1,279,071,908.40/x
  3. Step 3: Cross multiply
    2,911,658,660.40x = 4,367,487,990.60 × 1,279,071,908.40
  4. Step 4: Simplify right side
    2,911,658,660.40x = 5,586,331,199,050,823,680
  5. Step 5: Solve for x
    x = 5,586,331,199,050,823,680/2,911,658,660.40
  6. Step 6: Final answer
    x = 1,918,607,862.60

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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.