Home / 1,146,146,112.24-1,581,672,126.95-644,357,132.62

Finding the Fourth Proportional to 1,146,146,112.24, 1,581,672,126.95 and 644,357,132.62

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Solution

The fourth proportional to 1,146,146,112.24, 1,581,672,126.95 and 644,357,132.62 is: 889,207,497.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,146,112.24 : 1,581,672,126.95 = 644,357,132.62 : x
  2. Step 2: Convert to fraction form
    1,146,146,112.24/1,581,672,126.95 = 644,357,132.62/x
  3. Step 3: Cross multiply
    1,146,146,112.24x = 1,581,672,126.95 × 644,357,132.62
  4. Step 4: Simplify right side
    1,146,146,112.24x = 1,019,161,716,466,180,096
  5. Step 5: Solve for x
    x = 1,019,161,716,466,180,096/1,146,146,112.24
  6. Step 6: Final answer
    x = 889,207,497.71

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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.