Home / 20,616,816.15-30,878,141.67-9,841,683.78

Finding the Fourth Proportional to 20,616,816.15, 30,878,141.67 and 9,841,683.78

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Solution

The fourth proportional to 20,616,816.15, 30,878,141.67 and 9,841,683.78 is: 14,740,050.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616,816.15 : 30,878,141.67 = 9,841,683.78 : x
  2. Step 2: Convert to fraction form
    20,616,816.15/30,878,141.67 = 9,841,683.78/x
  3. Step 3: Cross multiply
    20,616,816.15x = 30,878,141.67 × 9,841,683.78
  4. Step 4: Simplify right side
    20,616,816.15x = 303,892,906,030,181.12
  5. Step 5: Solve for x
    x = 303,892,906,030,181.12/20,616,816.15
  6. Step 6: Final answer
    x = 14,740,050.25

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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.