Home / 2,160,409,920.80-3,240,703,354.80-628,600,128.80

Finding the Fourth Proportional to 2,160,409,920.80, 3,240,703,354.80 and 628,600,128.80

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Solution

The fourth proportional to 2,160,409,920.80, 3,240,703,354.80 and 628,600,128.80 is: 942,925,935.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160,409,920.80 : 3,240,703,354.80 = 628,600,128.80 : x
  2. Step 2: Convert to fraction form
    2,160,409,920.80/3,240,703,354.80 = 628,600,128.80/x
  3. Step 3: Cross multiply
    2,160,409,920.80x = 3,240,703,354.80 × 628,600,128.80
  4. Step 4: Simplify right side
    2,160,409,920.80x = 2,037,106,546,229,872,128
  5. Step 5: Solve for x
    x = 2,037,106,546,229,872,128/2,160,409,920.80
  6. Step 6: Final answer
    x = 942,925,935.78

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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.