Home / 10,198,187.40-15,261,851.70-9,347,881.80

Finding the Fourth Proportional to 10,198,187.40, 15,261,851.70 and 9,347,881.80

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Solution

The fourth proportional to 10,198,187.40, 15,261,851.70 and 9,347,881.80 is: 13,989,347.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198,187.40 : 15,261,851.70 = 9,347,881.80 : x
  2. Step 2: Convert to fraction form
    10,198,187.40/15,261,851.70 = 9,347,881.80/x
  3. Step 3: Cross multiply
    10,198,187.40x = 15,261,851.70 × 9,347,881.80
  4. Step 4: Simplify right side
    10,198,187.40x = 142,665,985,740,729.06
  5. Step 5: Solve for x
    x = 142,665,985,740,729.06/10,198,187.40
  6. Step 6: Final answer
    x = 13,989,347.34

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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.