Home / 89,991,747.15-135,036,762.38-38,168,288.79

Finding the Fourth Proportional to 89,991,747.15, 135,036,762.38 and 38,168,288.79

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Solution

The fourth proportional to 89,991,747.15, 135,036,762.38 and 38,168,288.79 is: 57,273,275.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,991,747.15 : 135,036,762.38 = 38,168,288.79 : x
  2. Step 2: Convert to fraction form
    89,991,747.15/135,036,762.38 = 38,168,288.79/x
  3. Step 3: Cross multiply
    89,991,747.15x = 135,036,762.38 × 38,168,288.79
  4. Step 4: Simplify right side
    89,991,747.15x = 5,154,122,143,595,606
  5. Step 5: Solve for x
    x = 5,154,122,143,595,606/89,991,747.15
  6. Step 6: Final answer
    x = 57,273,275.68

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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.