Home / 1,072,147,035.89-1,479,103,955.64-669,561,862.20

Finding the Fourth Proportional to 1,072,147,035.89, 1,479,103,955.64 and 669,561,862.20

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Solution

The fourth proportional to 1,072,147,035.89, 1,479,103,955.64 and 669,561,862.20 is: 923,708,750.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,147,035.89 : 1,479,103,955.64 = 669,561,862.20 : x
  2. Step 2: Convert to fraction form
    1,072,147,035.89/1,479,103,955.64 = 669,561,862.20/x
  3. Step 3: Cross multiply
    1,072,147,035.89x = 1,479,103,955.64 × 669,561,862.20
  4. Step 4: Simplify right side
    1,072,147,035.89x = 990,351,598,925,704,704
  5. Step 5: Solve for x
    x = 990,351,598,925,704,704/1,072,147,035.89
  6. Step 6: Final answer
    x = 923,708,750.55

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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.