Home / 913,639,376.21-1,260,823,938.64-495,951,944.45

Finding the Fourth Proportional to 913,639,376.21, 1,260,823,938.64 and 495,951,944.45

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Solution

The fourth proportional to 913,639,376.21, 1,260,823,938.64 and 495,951,944.45 is: 684,414,551.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,639,376.21 : 1,260,823,938.64 = 495,951,944.45 : x
  2. Step 2: Convert to fraction form
    913,639,376.21/1,260,823,938.64 = 495,951,944.45/x
  3. Step 3: Cross multiply
    913,639,376.21x = 1,260,823,938.64 × 495,951,944.45
  4. Step 4: Simplify right side
    913,639,376.21x = 625,308,083,970,071,552
  5. Step 5: Solve for x
    x = 625,308,083,970,071,552/913,639,376.21
  6. Step 6: Final answer
    x = 684,414,551.58

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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.