Home / 261,144,423.63-360,378,765.77-143,669,472.39

Finding the Fourth Proportional to 261,144,423.63, 360,378,765.77 and 143,669,472.39

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Solution

The fourth proportional to 261,144,423.63, 360,378,765.77 and 143,669,472.39 is: 198,263,575.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,144,423.63 : 360,378,765.77 = 143,669,472.39 : x
  2. Step 2: Convert to fraction form
    261,144,423.63/360,378,765.77 = 143,669,472.39/x
  3. Step 3: Cross multiply
    261,144,423.63x = 360,378,765.77 × 143,669,472.39
  4. Step 4: Simplify right side
    261,144,423.63x = 51,775,427,138,016,936
  5. Step 5: Solve for x
    x = 51,775,427,138,016,936/261,144,423.63
  6. Step 6: Final answer
    x = 198,263,575.45

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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.