Home / 861,613,535,927.48-1,292,420,303,980.20-287,929,648,911.38

Finding the Fourth Proportional to 861,613,535,927.48, 1,292,420,303,980.20 and 287,929,648,911.38

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Solution

The fourth proportional to 861,613,535,927.48, 1,292,420,303,980.20 and 287,929,648,911.38 is: 431,894,473,396.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,613,535,927.48 : 1,292,420,303,980.20 = 287,929,648,911.38 : x
  2. Step 2: Convert to fraction form
    861,613,535,927.48/1,292,420,303,980.20 = 287,929,648,911.38/x
  3. Step 3: Cross multiply
    861,613,535,927.48x = 1,292,420,303,980.20 × 287,929,648,911.38
  4. Step 4: Simplify right side
    861,613,535,927.48x = 372,126,124,370,958,005,305,344
  5. Step 5: Solve for x
    x = 372,126,124,370,958,005,305,344/861,613,535,927.48
  6. Step 6: Final answer
    x = 431,894,473,396.81

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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.