Home / 252,378,412.20-378,567,618.30-90,762,028.20

Finding the Fourth Proportional to 252,378,412.20, 378,567,618.30 and 90,762,028.20

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Solution

The fourth proportional to 252,378,412.20, 378,567,618.30 and 90,762,028.20 is: 136,143,042.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,378,412.20 : 378,567,618.30 = 90,762,028.20 : x
  2. Step 2: Convert to fraction form
    252,378,412.20/378,567,618.30 = 90,762,028.20/x
  3. Step 3: Cross multiply
    252,378,412.20x = 378,567,618.30 × 90,762,028.20
  4. Step 4: Simplify right side
    252,378,412.20x = 34,359,564,847,751,440
  5. Step 5: Solve for x
    x = 34,359,564,847,751,440/252,378,412.20
  6. Step 6: Final answer
    x = 136,143,042.30

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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.