Home / 766,507,194.38-1,149,769,915.42-213,775,993.20

Finding the Fourth Proportional to 766,507,194.38, 1,149,769,915.42 and 213,775,993.20

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Solution

The fourth proportional to 766,507,194.38, 1,149,769,915.42 and 213,775,993.20 is: 320,666,534.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,507,194.38 : 1,149,769,915.42 = 213,775,993.20 : x
  2. Step 2: Convert to fraction form
    766,507,194.38/1,149,769,915.42 = 213,775,993.20/x
  3. Step 3: Cross multiply
    766,507,194.38x = 1,149,769,915.42 × 213,775,993.20
  4. Step 4: Simplify right side
    766,507,194.38x = 245,793,205,620,390,496
  5. Step 5: Solve for x
    x = 245,793,205,620,390,496/766,507,194.38
  6. Step 6: Final answer
    x = 320,666,534.41

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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.