Home / 663,868,261.37-995,788,719.97-221,243,079.00

Finding the Fourth Proportional to 663,868,261.37, 995,788,719.97 and 221,243,079.00

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Solution

The fourth proportional to 663,868,261.37, 995,788,719.97 and 221,243,079.00 is: 331,860,062.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,868,261.37 : 995,788,719.97 = 221,243,079.00 : x
  2. Step 2: Convert to fraction form
    663,868,261.37/995,788,719.97 = 221,243,079.00/x
  3. Step 3: Cross multiply
    663,868,261.37x = 995,788,719.97 × 221,243,079.00
  4. Step 4: Simplify right side
    663,868,261.37x = 220,311,362,442,812,672
  5. Step 5: Solve for x
    x = 220,311,362,442,812,672/663,868,261.37
  6. Step 6: Final answer
    x = 331,860,062.10

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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.