Home / 28,018,836.80-42,028,255.20-9,843,554.60

Finding the Fourth Proportional to 28,018,836.80, 42,028,255.20 and 9,843,554.60

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Solution

The fourth proportional to 28,018,836.80, 42,028,255.20 and 9,843,554.60 is: 14,765,331.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018,836.80 : 42,028,255.20 = 9,843,554.60 : x
  2. Step 2: Convert to fraction form
    28,018,836.80/42,028,255.20 = 9,843,554.60/x
  3. Step 3: Cross multiply
    28,018,836.80x = 42,028,255.20 × 9,843,554.60
  4. Step 4: Simplify right side
    28,018,836.80x = 413,707,424,803,933.94
  5. Step 5: Solve for x
    x = 413,707,424,803,933.94/28,018,836.80
  6. Step 6: Final answer
    x = 14,765,331.90

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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.