Home / 28,018,811.80-42,028,217.70-9,843,529.60

Finding the Fourth Proportional to 28,018,811.80, 42,028,217.70 and 9,843,529.60

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Solution

The fourth proportional to 28,018,811.80, 42,028,217.70 and 9,843,529.60 is: 14,765,294.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018,811.80 : 42,028,217.70 = 9,843,529.60 : x
  2. Step 2: Convert to fraction form
    28,018,811.80/42,028,217.70 = 9,843,529.60/x
  3. Step 3: Cross multiply
    28,018,811.80x = 42,028,217.70 × 9,843,529.60
  4. Step 4: Simplify right side
    28,018,811.80x = 413,706,004,965,193.94
  5. Step 5: Solve for x
    x = 413,706,004,965,193.94/28,018,811.80
  6. Step 6: Final answer
    x = 14,765,294.40

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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.