Home / 770,614,986.36-1,063,449,367.02-418,190,978.04

Finding the Fourth Proportional to 770,614,986.36, 1,063,449,367.02 and 418,190,978.04

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Solution

The fourth proportional to 770,614,986.36, 1,063,449,367.02 and 418,190,978.04 is: 577,103,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,614,986.36 : 1,063,449,367.02 = 418,190,978.04 : x
  2. Step 2: Convert to fraction form
    770,614,986.36/1,063,449,367.02 = 418,190,978.04/x
  3. Step 3: Cross multiply
    770,614,986.36x = 1,063,449,367.02 × 418,190,978.04
  4. Step 4: Simplify right side
    770,614,986.36x = 444,724,930,890,112,704
  5. Step 5: Solve for x
    x = 444,724,930,890,112,704/770,614,986.36
  6. Step 6: Final answer
    x = 577,103,921.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.