Home / 518,401,363.20-777,714,019.20-154,932,460.80

Finding the Fourth Proportional to 518,401,363.20, 777,714,019.20 and 154,932,460.80

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Solution

The fourth proportional to 518,401,363.20, 777,714,019.20 and 154,932,460.80 is: 232,432,156.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,401,363.20 : 777,714,019.20 = 154,932,460.80 : x
  2. Step 2: Convert to fraction form
    518,401,363.20/777,714,019.20 = 154,932,460.80/x
  3. Step 3: Cross multiply
    518,401,363.20x = 777,714,019.20 × 154,932,460.80
  4. Step 4: Simplify right side
    518,401,363.20x = 120,493,146,793,314,464
  5. Step 5: Solve for x
    x = 120,493,146,793,314,464/518,401,363.20
  6. Step 6: Final answer
    x = 232,432,156.52

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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.