Home / 28,377,643.20-42,566,464.80-19,867,588.80

Finding the Fourth Proportional to 28,377,643.20, 42,566,464.80 and 19,867,588.80

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Solution

The fourth proportional to 28,377,643.20, 42,566,464.80 and 19,867,588.80 is: 29,801,383.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,377,643.20 : 42,566,464.80 = 19,867,588.80 : x
  2. Step 2: Convert to fraction form
    28,377,643.20/42,566,464.80 = 19,867,588.80/x
  3. Step 3: Cross multiply
    28,377,643.20x = 42,566,464.80 × 19,867,588.80
  4. Step 4: Simplify right side
    28,377,643.20x = 845,693,019,316,074.25
  5. Step 5: Solve for x
    x = 845,693,019,316,074.25/28,377,643.20
  6. Step 6: Final answer
    x = 29,801,383.20

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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.