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Finding the Fourth Proportional to 405,447,188.04, 559,979,012.88 and 274,840,247.88

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Solution

The fourth proportional to 405,447,188.04, 559,979,012.88 and 274,840,247.88 is: 379,592,645.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,447,188.04 : 559,979,012.88 = 274,840,247.88 : x
  2. Step 2: Convert to fraction form
    405,447,188.04/559,979,012.88 = 274,840,247.88/x
  3. Step 3: Cross multiply
    405,447,188.04x = 559,979,012.88 × 274,840,247.88
  4. Step 4: Simplify right side
    405,447,188.04x = 153,904,770,707,536,896
  5. Step 5: Solve for x
    x = 153,904,770,707,536,896/405,447,188.04
  6. Step 6: Final answer
    x = 379,592,645.47

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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.