Home / 742,203,818.72-1,024,213,207.96-412,200,215.36

Finding the Fourth Proportional to 742,203,818.72, 1,024,213,207.96 and 412,200,215.36

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Solution

The fourth proportional to 742,203,818.72, 1,024,213,207.96 and 412,200,215.36 is: 568,820,712.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,203,818.72 : 1,024,213,207.96 = 412,200,215.36 : x
  2. Step 2: Convert to fraction form
    742,203,818.72/1,024,213,207.96 = 412,200,215.36/x
  3. Step 3: Cross multiply
    742,203,818.72x = 1,024,213,207.96 × 412,200,215.36
  4. Step 4: Simplify right side
    742,203,818.72x = 422,180,904,895,668,480
  5. Step 5: Solve for x
    x = 422,180,904,895,668,480/742,203,818.72
  6. Step 6: Final answer
    x = 568,820,712.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.