Home / 68,352,878.64-102,516,254.11-20,483,822.64

Finding the Fourth Proportional to 68,352,878.64, 102,516,254.11 and 20,483,822.64

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Solution

The fourth proportional to 68,352,878.64, 102,516,254.11 and 20,483,822.64 is: 30,721,819.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,352,878.64 : 102,516,254.11 = 20,483,822.64 : x
  2. Step 2: Convert to fraction form
    68,352,878.64/102,516,254.11 = 20,483,822.64/x
  3. Step 3: Cross multiply
    68,352,878.64x = 102,516,254.11 × 20,483,822.64
  4. Step 4: Simplify right side
    68,352,878.64x = 2,099,924,766,906,411
  5. Step 5: Solve for x
    x = 2,099,924,766,906,411/68,352,878.64
  6. Step 6: Final answer
    x = 30,721,819.02

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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.