Home / 2,659,403,902.80-3,989,105,854.20-1,281,908,830.80

Finding the Fourth Proportional to 2,659,403,902.80, 3,989,105,854.20 and 1,281,908,830.80

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Solution

The fourth proportional to 2,659,403,902.80, 3,989,105,854.20 and 1,281,908,830.80 is: 1,922,863,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659,403,902.80 : 3,989,105,854.20 = 1,281,908,830.80 : x
  2. Step 2: Convert to fraction form
    2,659,403,902.80/3,989,105,854.20 = 1,281,908,830.80/x
  3. Step 3: Cross multiply
    2,659,403,902.80x = 3,989,105,854.20 × 1,281,908,830.80
  4. Step 4: Simplify right side
    2,659,403,902.80x = 5,113,670,021,494,957,056
  5. Step 5: Solve for x
    x = 5,113,670,021,494,957,056/2,659,403,902.80
  6. Step 6: Final answer
    x = 1,922,863,246.20

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Double scale
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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.