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Finding the Fourth Proportional to 365,186,658.72, 503,663,737.56 and 321,039,264.36

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Solution

The fourth proportional to 365,186,658.72, 503,663,737.56 and 321,039,264.36 is: 442,775,857.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,186,658.72 : 503,663,737.56 = 321,039,264.36 : x
  2. Step 2: Convert to fraction form
    365,186,658.72/503,663,737.56 = 321,039,264.36/x
  3. Step 3: Cross multiply
    365,186,658.72x = 503,663,737.56 × 321,039,264.36
  4. Step 4: Simplify right side
    365,186,658.72x = 161,695,835,791,070,496
  5. Step 5: Solve for x
    x = 161,695,835,791,070,496/365,186,658.72
  6. Step 6: Final answer
    x = 442,775,857.03

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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.