Home / 90,254,812.38-135,459,523.56-89,575,453.62

Finding the Fourth Proportional to 90,254,812.38, 135,459,523.56 and 89,575,453.62

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Solution

The fourth proportional to 90,254,812.38, 135,459,523.56 and 89,575,453.62 is: 134,439,903.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,254,812.38 : 135,459,523.56 = 89,575,453.62 : x
  2. Step 2: Convert to fraction form
    90,254,812.38/135,459,523.56 = 89,575,453.62/x
  3. Step 3: Cross multiply
    90,254,812.38x = 135,459,523.56 × 89,575,453.62
  4. Step 4: Simplify right side
    90,254,812.38x = 12,133,848,270,036,078
  5. Step 5: Solve for x
    x = 12,133,848,270,036,078/90,254,812.38
  6. Step 6: Final answer
    x = 134,439,903.54

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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.