Home / 2,987,029,209.60-4,480,543,814.40-805,991,846.40

Finding the Fourth Proportional to 2,987,029,209.60, 4,480,543,814.40 and 805,991,846.40

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Solution

The fourth proportional to 2,987,029,209.60, 4,480,543,814.40 and 805,991,846.40 is: 1,208,987,769.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,029,209.60 : 4,480,543,814.40 = 805,991,846.40 : x
  2. Step 2: Convert to fraction form
    2,987,029,209.60/4,480,543,814.40 = 805,991,846.40/x
  3. Step 3: Cross multiply
    2,987,029,209.60x = 4,480,543,814.40 × 805,991,846.40
  4. Step 4: Simplify right side
    2,987,029,209.60x = 3,611,281,781,844,354,560
  5. Step 5: Solve for x
    x = 3,611,281,781,844,354,560/2,987,029,209.60
  6. Step 6: Final answer
    x = 1,208,987,769.60

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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.