Home / 28,377,645.20-42,566,467.80-19,867,590.80

Finding the Fourth Proportional to 28,377,645.20, 42,566,467.80 and 19,867,590.80

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Solution

The fourth proportional to 28,377,645.20, 42,566,467.80 and 19,867,590.80 is: 29,801,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,377,645.20 : 42,566,467.80 = 19,867,590.80 : x
  2. Step 2: Convert to fraction form
    28,377,645.20/42,566,467.80 = 19,867,590.80/x
  3. Step 3: Cross multiply
    28,377,645.20x = 42,566,467.80 × 19,867,590.80
  4. Step 4: Simplify right side
    28,377,645.20x = 845,693,164,051,776.25
  5. Step 5: Solve for x
    x = 845,693,164,051,776.25/28,377,645.20
  6. Step 6: Final answer
    x = 29,801,386.20

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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.