Home / 12,739,732.72-19,117,820.40-4,652,031.20

Finding the Fourth Proportional to 12,739,732.72, 19,117,820.40 and 4,652,031.20

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Solution

The fourth proportional to 12,739,732.72, 19,117,820.40 and 4,652,031.20 is: 6,981,048.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739,732.72 : 19,117,820.40 = 4,652,031.20 : x
  2. Step 2: Convert to fraction form
    12,739,732.72/19,117,820.40 = 4,652,031.20/x
  3. Step 3: Cross multiply
    12,739,732.72x = 19,117,820.40 × 4,652,031.20
  4. Step 4: Simplify right side
    12,739,732.72x = 88,936,696,976,796.48
  5. Step 5: Solve for x
    x = 88,936,696,976,796.48/12,739,732.72
  6. Step 6: Final answer
    x = 6,981,048.89

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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.