Home / 215,036,357.88-322,554,551.51-85,734,769.67

Finding the Fourth Proportional to 215,036,357.88, 322,554,551.51 and 85,734,769.67

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Solution

The fourth proportional to 215,036,357.88, 322,554,551.51 and 85,734,769.67 is: 128,602,160.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,036,357.88 : 322,554,551.51 = 85,734,769.67 : x
  2. Step 2: Convert to fraction form
    215,036,357.88/322,554,551.51 = 85,734,769.67/x
  3. Step 3: Cross multiply
    215,036,357.88x = 322,554,551.51 × 85,734,769.67
  4. Step 4: Simplify right side
    215,036,357.88x = 27,654,140,179,954,624
  5. Step 5: Solve for x
    x = 27,654,140,179,954,624/215,036,357.88
  6. Step 6: Final answer
    x = 128,602,160.37

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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.