Home / 406,010,877.90-560,280,008.45-220,367,907.78

Finding the Fourth Proportional to 406,010,877.90, 560,280,008.45 and 220,367,907.78

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Solution

The fourth proportional to 406,010,877.90, 560,280,008.45 and 220,367,907.78 is: 304,099,569.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,010,877.90 : 560,280,008.45 = 220,367,907.78 : x
  2. Step 2: Convert to fraction form
    406,010,877.90/560,280,008.45 = 220,367,907.78/x
  3. Step 3: Cross multiply
    406,010,877.90x = 560,280,008.45 × 220,367,907.78
  4. Step 4: Simplify right side
    406,010,877.90x = 123,467,733,231,985,392
  5. Step 5: Solve for x
    x = 123,467,733,231,985,392/406,010,877.90
  6. Step 6: Final answer
    x = 304,099,569.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.