Home / 10,751,990.40-16,127,985.60-9,128,361.60

Finding the Fourth Proportional to 10,751,990.40, 16,127,985.60 and 9,128,361.60

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Solution

The fourth proportional to 10,751,990.40, 16,127,985.60 and 9,128,361.60 is: 13,692,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,751,990.40 : 16,127,985.60 = 9,128,361.60 : x
  2. Step 2: Convert to fraction form
    10,751,990.40/16,127,985.60 = 9,128,361.60/x
  3. Step 3: Cross multiply
    10,751,990.40x = 16,127,985.60 × 9,128,361.60
  4. Step 4: Simplify right side
    10,751,990.40x = 147,222,084,436,392.94
  5. Step 5: Solve for x
    x = 147,222,084,436,392.94/10,751,990.40
  6. Step 6: Final answer
    x = 13,692,542.40

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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.