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Finding the Fourth Proportional to 30,902,524.60, 46,353,786.90 and 19,406,486.20

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Solution

The fourth proportional to 30,902,524.60, 46,353,786.90 and 19,406,486.20 is: 29,109,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,902,524.60 : 46,353,786.90 = 19,406,486.20 : x
  2. Step 2: Convert to fraction form
    30,902,524.60/46,353,786.90 = 19,406,486.20/x
  3. Step 3: Cross multiply
    30,902,524.60x = 46,353,786.90 × 19,406,486.20
  4. Step 4: Simplify right side
    30,902,524.60x = 899,564,125,792,590.75
  5. Step 5: Solve for x
    x = 899,564,125,792,590.75/30,902,524.60
  6. Step 6: Final answer
    x = 29,109,729.30

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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.