Home / 987,532,435.02-1,481,627,941.92-656,843,131.56

Finding the Fourth Proportional to 987,532,435.02, 1,481,627,941.92 and 656,843,131.56

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Solution

The fourth proportional to 987,532,435.02, 1,481,627,941.92 and 656,843,131.56 is: 985,483,719.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,532,435.02 : 1,481,627,941.92 = 656,843,131.56 : x
  2. Step 2: Convert to fraction form
    987,532,435.02/1,481,627,941.92 = 656,843,131.56/x
  3. Step 3: Cross multiply
    987,532,435.02x = 1,481,627,941.92 × 656,843,131.56
  4. Step 4: Simplify right side
    987,532,435.02x = 973,197,137,177,530,624
  5. Step 5: Solve for x
    x = 973,197,137,177,530,624/987,532,435.02
  6. Step 6: Final answer
    x = 985,483,719.49

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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.