Home / 825,427,472.92-1,237,202,551.14-431,346,700.60

Finding the Fourth Proportional to 825,427,472.92, 1,237,202,551.14 and 431,346,700.60

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Solution

The fourth proportional to 825,427,472.92, 1,237,202,551.14 and 431,346,700.60 is: 646,529,532.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,427,472.92 : 1,237,202,551.14 = 431,346,700.60 : x
  2. Step 2: Convert to fraction form
    825,427,472.92/1,237,202,551.14 = 431,346,700.60/x
  3. Step 3: Cross multiply
    825,427,472.92x = 1,237,202,551.14 × 431,346,700.60
  4. Step 4: Simplify right side
    825,427,472.92x = 533,663,238,408,141,824
  5. Step 5: Solve for x
    x = 533,663,238,408,141,824/825,427,472.92
  6. Step 6: Final answer
    x = 646,529,532.78

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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.