Home / 516,915,613.69-713,348,099.48-281,967,319.06

Finding the Fourth Proportional to 516,915,613.69, 713,348,099.48 and 281,967,319.06

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Solution

The fourth proportional to 516,915,613.69, 713,348,099.48 and 281,967,319.06 is: 389,117,383.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,915,613.69 : 713,348,099.48 = 281,967,319.06 : x
  2. Step 2: Convert to fraction form
    516,915,613.69/713,348,099.48 = 281,967,319.06/x
  3. Step 3: Cross multiply
    516,915,613.69x = 713,348,099.48 × 281,967,319.06
  4. Step 4: Simplify right side
    516,915,613.69x = 201,140,851,166,921,792
  5. Step 5: Solve for x
    x = 201,140,851,166,921,792/516,915,613.69
  6. Step 6: Final answer
    x = 389,117,383.65

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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.