Home / 825,427,471.92-1,237,202,549.64-431,346,699.60

Finding the Fourth Proportional to 825,427,471.92, 1,237,202,549.64 and 431,346,699.60

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Solution

The fourth proportional to 825,427,471.92, 1,237,202,549.64 and 431,346,699.60 is: 646,529,531.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,427,471.92 : 1,237,202,549.64 = 431,346,699.60 : x
  2. Step 2: Convert to fraction form
    825,427,471.92/1,237,202,549.64 = 431,346,699.60/x
  3. Step 3: Cross multiply
    825,427,471.92x = 1,237,202,549.64 × 431,346,699.60
  4. Step 4: Simplify right side
    825,427,471.92x = 533,663,236,523,919,232
  5. Step 5: Solve for x
    x = 533,663,236,523,919,232/825,427,471.92
  6. Step 6: Final answer
    x = 646,529,531.28

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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.