Home / 314,928,512.20-472,392,768.30-290,057,073.40

Finding the Fourth Proportional to 314,928,512.20, 472,392,768.30 and 290,057,073.40

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Solution

The fourth proportional to 314,928,512.20, 472,392,768.30 and 290,057,073.40 is: 435,085,610.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,512.20 : 472,392,768.30 = 290,057,073.40 : x
  2. Step 2: Convert to fraction form
    314,928,512.20/472,392,768.30 = 290,057,073.40/x
  3. Step 3: Cross multiply
    314,928,512.20x = 472,392,768.30 × 290,057,073.40
  4. Step 4: Simplify right side
    314,928,512.20x = 137,020,863,868,422,288
  5. Step 5: Solve for x
    x = 137,020,863,868,422,288/314,928,512.20
  6. Step 6: Final answer
    x = 435,085,610.10

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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.