Home / 135,886,472.10-187,525,488.78-77,147,938.62

Finding the Fourth Proportional to 135,886,472.10, 187,525,488.78 and 77,147,938.62

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Solution

The fourth proportional to 135,886,472.10, 187,525,488.78 and 77,147,938.62 is: 106,465,380.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,886,472.10 : 187,525,488.78 = 77,147,938.62 : x
  2. Step 2: Convert to fraction form
    135,886,472.10/187,525,488.78 = 77,147,938.62/x
  3. Step 3: Cross multiply
    135,886,472.10x = 187,525,488.78 × 77,147,938.62
  4. Step 4: Simplify right side
    135,886,472.10x = 14,467,204,898,084,940
  5. Step 5: Solve for x
    x = 14,467,204,898,084,940/135,886,472.10
  6. Step 6: Final answer
    x = 106,465,380.07

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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.