Home / 1,320,145,425,836.40-1,980,215,667,111.20-413,652,630,208.62

Finding the Fourth Proportional to 1,320,145,425,836.40, 1,980,215,667,111.20 and 413,652,630,208.62

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Solution

The fourth proportional to 1,320,145,425,836.40, 1,980,215,667,111.20 and 413,652,630,208.62 is: 620,478,170,851.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,145,425,836.40 : 1,980,215,667,111.20 = 413,652,630,208.62 : x
  2. Step 2: Convert to fraction form
    1,320,145,425,836.40/1,980,215,667,111.20 = 413,652,630,208.62/x
  3. Step 3: Cross multiply
    1,320,145,425,836.40x = 1,980,215,667,111.20 × 413,652,630,208.62
  4. Step 4: Simplify right side
    1,320,145,425,836.40x = 819,121,419,080,864,955,891,712
  5. Step 5: Solve for x
    x = 819,121,419,080,864,955,891,712/1,320,145,425,836.40
  6. Step 6: Final answer
    x = 620,478,170,851.44

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Double scale
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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.