Home / 868,920,321.41-1,199,101,613.32-472,443,305.57

Finding the Fourth Proportional to 868,920,321.41, 1,199,101,613.32 and 472,443,305.57

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Solution

The fourth proportional to 868,920,321.41, 1,199,101,613.32 and 472,443,305.57 is: 651,967,178.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,920,321.41 : 1,199,101,613.32 = 472,443,305.57 : x
  2. Step 2: Convert to fraction form
    868,920,321.41/1,199,101,613.32 = 472,443,305.57/x
  3. Step 3: Cross multiply
    868,920,321.41x = 1,199,101,613.32 × 472,443,305.57
  4. Step 4: Simplify right side
    868,920,321.41x = 566,507,529,911,220,672
  5. Step 5: Solve for x
    x = 566,507,529,911,220,672/868,920,321.41
  6. Step 6: Final answer
    x = 651,967,178.06

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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.