Home / 3,989,105,999.20-5,983,658,998.80-2,152,445,903.20

Finding the Fourth Proportional to 3,989,105,999.20, 5,983,658,998.80 and 2,152,445,903.20

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Solution

The fourth proportional to 3,989,105,999.20, 5,983,658,998.80 and 2,152,445,903.20 is: 3,228,668,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989,105,999.20 : 5,983,658,998.80 = 2,152,445,903.20 : x
  2. Step 2: Convert to fraction form
    3,989,105,999.20/5,983,658,998.80 = 2,152,445,903.20/x
  3. Step 3: Cross multiply
    3,989,105,999.20x = 5,983,658,998.80 × 2,152,445,903.20
  4. Step 4: Simplify right side
    3,989,105,999.20x = 12,879,502,298,112,872,448
  5. Step 5: Solve for x
    x = 12,879,502,298,112,872,448/3,989,105,999.20
  6. Step 6: Final answer
    x = 3,228,668,854.80

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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.