Home / 314,929,557.20-472,394,335.80-217,994,718.80

Finding the Fourth Proportional to 314,929,557.20, 472,394,335.80 and 217,994,718.80

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Solution

The fourth proportional to 314,929,557.20, 472,394,335.80 and 217,994,718.80 is: 326,992,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,929,557.20 : 472,394,335.80 = 217,994,718.80 : x
  2. Step 2: Convert to fraction form
    314,929,557.20/472,394,335.80 = 217,994,718.80/x
  3. Step 3: Cross multiply
    314,929,557.20x = 472,394,335.80 × 217,994,718.80
  4. Step 4: Simplify right side
    314,929,557.20x = 102,979,470,395,433,776
  5. Step 5: Solve for x
    x = 102,979,470,395,433,776/314,929,557.20
  6. Step 6: Final answer
    x = 326,992,078.20

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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.