Home / 479,745,792.28-661,988,333.48-281,434,929.48

Finding the Fourth Proportional to 479,745,792.28, 661,988,333.48 and 281,434,929.48

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Solution

The fourth proportional to 479,745,792.28, 661,988,333.48 and 281,434,929.48 is: 388,344,500.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,745,792.28 : 661,988,333.48 = 281,434,929.48 : x
  2. Step 2: Convert to fraction form
    479,745,792.28/661,988,333.48 = 281,434,929.48/x
  3. Step 3: Cross multiply
    479,745,792.28x = 661,988,333.48 × 281,434,929.48
  4. Step 4: Simplify right side
    479,745,792.28x = 186,306,639,946,259,168
  5. Step 5: Solve for x
    x = 186,306,639,946,259,168/479,745,792.28
  6. Step 6: Final answer
    x = 388,344,500.24

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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.