Home / 168,490,810.80-252,232,331.40-100,298,401.20

Finding the Fourth Proportional to 168,490,810.80, 252,232,331.40 and 100,298,401.20

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Solution

The fourth proportional to 168,490,810.80, 252,232,331.40 and 100,298,401.20 is: 150,147,651.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,490,810.80 : 252,232,331.40 = 100,298,401.20 : x
  2. Step 2: Convert to fraction form
    168,490,810.80/252,232,331.40 = 100,298,401.20/x
  3. Step 3: Cross multiply
    168,490,810.80x = 252,232,331.40 × 100,298,401.20
  4. Step 4: Simplify right side
    168,490,810.80x = 25,298,499,570,368,560
  5. Step 5: Solve for x
    x = 25,298,499,570,368,560/168,490,810.80
  6. Step 6: Final answer
    x = 150,147,651.67

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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.