Home / 133,345,672.10-200,018,508.15-78,702,164.90

Finding the Fourth Proportional to 133,345,672.10, 200,018,508.15 and 78,702,164.90

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Solution

The fourth proportional to 133,345,672.10, 200,018,508.15 and 78,702,164.90 is: 118,053,247.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,345,672.10 : 200,018,508.15 = 78,702,164.90 : x
  2. Step 2: Convert to fraction form
    133,345,672.10/200,018,508.15 = 78,702,164.90/x
  3. Step 3: Cross multiply
    133,345,672.10x = 200,018,508.15 × 78,702,164.90
  4. Step 4: Simplify right side
    133,345,672.10x = 15,741,889,611,473,296
  5. Step 5: Solve for x
    x = 15,741,889,611,473,296/133,345,672.10
  6. Step 6: Final answer
    x = 118,053,247.35

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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.