Home / 28,192,315.80-42,260,480.10-13,019,784.60

Finding the Fourth Proportional to 28,192,315.80, 42,260,480.10 and 13,019,784.60

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Solution

The fourth proportional to 28,192,315.80, 42,260,480.10 and 13,019,784.60 is: 19,516,748.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192,315.80 : 42,260,480.10 = 13,019,784.60 : x
  2. Step 2: Convert to fraction form
    28,192,315.80/42,260,480.10 = 13,019,784.60/x
  3. Step 3: Cross multiply
    28,192,315.80x = 42,260,480.10 × 13,019,784.60
  4. Step 4: Simplify right side
    28,192,315.80x = 550,222,347,994,586.44
  5. Step 5: Solve for x
    x = 550,222,347,994,586.44/28,192,315.80
  6. Step 6: Final answer
    x = 19,516,748.89

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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.