Home / 18,145,931.98-25,041,310.61-9,885,968.54

Finding the Fourth Proportional to 18,145,931.98, 25,041,310.61 and 9,885,968.54

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Solution

The fourth proportional to 18,145,931.98, 25,041,310.61 and 9,885,968.54 is: 13,642,595.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,931.98 : 25,041,310.61 = 9,885,968.54 : x
  2. Step 2: Convert to fraction form
    18,145,931.98/25,041,310.61 = 9,885,968.54/x
  3. Step 3: Cross multiply
    18,145,931.98x = 25,041,310.61 × 9,885,968.54
  4. Step 4: Simplify right side
    18,145,931.98x = 247,557,608,978,763.34
  5. Step 5: Solve for x
    x = 247,557,608,978,763.34/18,145,931.98
  6. Step 6: Final answer
    x = 13,642,595.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.