Home / 518,319,085.90-777,478,628.85-324,608,841.40

Finding the Fourth Proportional to 518,319,085.90, 777,478,628.85 and 324,608,841.40

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Solution

The fourth proportional to 518,319,085.90, 777,478,628.85 and 324,608,841.40 is: 486,913,262.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,319,085.90 : 777,478,628.85 = 324,608,841.40 : x
  2. Step 2: Convert to fraction form
    518,319,085.90/777,478,628.85 = 324,608,841.40/x
  3. Step 3: Cross multiply
    518,319,085.90x = 777,478,628.85 × 324,608,841.40
  4. Step 4: Simplify right side
    518,319,085.90x = 252,376,436,924,259,104
  5. Step 5: Solve for x
    x = 252,376,436,924,259,104/518,319,085.90
  6. Step 6: Final answer
    x = 486,913,262.10

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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.