Home / 689,700,417.06-1,034,687,128.41-253,004,915.37

Finding the Fourth Proportional to 689,700,417.06, 1,034,687,128.41 and 253,004,915.37

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Solution

The fourth proportional to 689,700,417.06, 1,034,687,128.41 and 253,004,915.37 is: 379,557,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,700,417.06 : 1,034,687,128.41 = 253,004,915.37 : x
  2. Step 2: Convert to fraction form
    689,700,417.06/1,034,687,128.41 = 253,004,915.37/x
  3. Step 3: Cross multiply
    689,700,417.06x = 1,034,687,128.41 × 253,004,915.37
  4. Step 4: Simplify right side
    689,700,417.06x = 261,780,929,357,800,384
  5. Step 5: Solve for x
    x = 261,780,929,357,800,384/689,700,417.06
  6. Step 6: Final answer
    x = 379,557,446.80

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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.