Home / 618,746,388.19-928,528,470.29-291,315,540.19

Finding the Fourth Proportional to 618,746,388.19, 928,528,470.29 and 291,315,540.19

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Solution

The fourth proportional to 618,746,388.19, 928,528,470.29 and 291,315,540.19 is: 437,165,821.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,746,388.19 : 928,528,470.29 = 291,315,540.19 : x
  2. Step 2: Convert to fraction form
    618,746,388.19/928,528,470.29 = 291,315,540.19/x
  3. Step 3: Cross multiply
    618,746,388.19x = 928,528,470.29 × 291,315,540.19
  4. Step 4: Simplify right side
    618,746,388.19x = 270,494,772,904,325,696
  5. Step 5: Solve for x
    x = 270,494,772,904,325,696/618,746,388.19
  6. Step 6: Final answer
    x = 437,165,821.19

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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.