Home / 30,402,816.60-45,612,000.90-21,444,864.60

Finding the Fourth Proportional to 30,402,816.60, 45,612,000.90 and 21,444,864.60

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Solution

The fourth proportional to 30,402,816.60, 45,612,000.90 and 21,444,864.60 is: 32,172,781.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,402,816.60 : 45,612,000.90 = 21,444,864.60 : x
  2. Step 2: Convert to fraction form
    30,402,816.60/45,612,000.90 = 21,444,864.60/x
  3. Step 3: Cross multiply
    30,402,816.60x = 45,612,000.90 × 21,444,864.60
  4. Step 4: Simplify right side
    30,402,816.60x = 978,143,183,435,578.12
  5. Step 5: Solve for x
    x = 978,143,183,435,578.12/30,402,816.60
  6. Step 6: Final answer
    x = 32,172,781.76

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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.