Home / 891,030,176,445.78-1,229,621,776,142.90-485,040,799,833.30

Finding the Fourth Proportional to 891,030,176,445.78, 1,229,621,776,142.90 and 485,040,799,833.30

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Solution

The fourth proportional to 891,030,176,445.78, 1,229,621,776,142.90 and 485,040,799,833.30 is: 669,356,375,978.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,030,176,445.78 : 1,229,621,776,142.90 = 485,040,799,833.30 : x
  2. Step 2: Convert to fraction form
    891,030,176,445.78/1,229,621,776,142.90 = 485,040,799,833.30/x
  3. Step 3: Cross multiply
    891,030,176,445.78x = 1,229,621,776,142.90 × 485,040,799,833.30
  4. Step 4: Simplify right side
    891,030,176,445.78x = 596,416,729,792,795,123,908,608
  5. Step 5: Solve for x
    x = 596,416,729,792,795,123,908,608/891,030,176,445.78
  6. Step 6: Final answer
    x = 669,356,375,978.01

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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.