Home / 198,311,202.32-273,381,027.90-138,587,071.28

Finding the Fourth Proportional to 198,311,202.32, 273,381,027.90 and 138,587,071.28

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Solution

The fourth proportional to 198,311,202.32, 273,381,027.90 and 138,587,071.28 is: 191,048,592.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,311,202.32 : 273,381,027.90 = 138,587,071.28 : x
  2. Step 2: Convert to fraction form
    198,311,202.32/273,381,027.90 = 138,587,071.28/x
  3. Step 3: Cross multiply
    198,311,202.32x = 273,381,027.90 × 138,587,071.28
  4. Step 4: Simplify right side
    198,311,202.32x = 37,887,076,000,176,968
  5. Step 5: Solve for x
    x = 37,887,076,000,176,968/198,311,202.32
  6. Step 6: Final answer
    x = 191,048,592.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.