Home / 152,656,132.34-228,406,378.86-90,440,861.78

Finding the Fourth Proportional to 152,656,132.34, 228,406,378.86 and 90,440,861.78

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Solution

The fourth proportional to 152,656,132.34, 228,406,378.86 and 90,440,861.78 is: 135,318,964.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,656,132.34 : 228,406,378.86 = 90,440,861.78 : x
  2. Step 2: Convert to fraction form
    152,656,132.34/228,406,378.86 = 90,440,861.78/x
  3. Step 3: Cross multiply
    152,656,132.34x = 228,406,378.86 × 90,440,861.78
  4. Step 4: Simplify right side
    152,656,132.34x = 20,657,269,740,147,576
  5. Step 5: Solve for x
    x = 20,657,269,740,147,576/152,656,132.34
  6. Step 6: Final answer
    x = 135,318,964.42

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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.