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Finding the Fourth Proportional to 243,569,114.70, 365,353,672.05 and 219,382,644.30

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Solution

The fourth proportional to 243,569,114.70, 365,353,672.05 and 219,382,644.30 is: 329,073,966.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,569,114.70 : 365,353,672.05 = 219,382,644.30 : x
  2. Step 2: Convert to fraction form
    243,569,114.70/365,353,672.05 = 219,382,644.30/x
  3. Step 3: Cross multiply
    243,569,114.70x = 365,353,672.05 × 219,382,644.30
  4. Step 4: Simplify right side
    243,569,114.70x = 80,152,254,679,044,016
  5. Step 5: Solve for x
    x = 80,152,254,679,044,016/243,569,114.70
  6. Step 6: Final answer
    x = 329,073,966.45

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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.