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Finding the Fourth Proportional to 242,904,123.80, 364,356,185.70 and 219,473,480.60

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Solution

The fourth proportional to 242,904,123.80, 364,356,185.70 and 219,473,480.60 is: 329,210,220.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,904,123.80 : 364,356,185.70 = 219,473,480.60 : x
  2. Step 2: Convert to fraction form
    242,904,123.80/364,356,185.70 = 219,473,480.60/x
  3. Step 3: Cross multiply
    242,904,123.80x = 364,356,185.70 × 219,473,480.60
  4. Step 4: Simplify right side
    242,904,123.80x = 79,966,520,253,718,944
  5. Step 5: Solve for x
    x = 79,966,520,253,718,944/242,904,123.80
  6. Step 6: Final answer
    x = 329,210,220.90

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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.