Home / 406,010,878.40-560,280,009.13-220,367,908.28

Finding the Fourth Proportional to 406,010,878.40, 560,280,009.13 and 220,367,908.28

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Solution

The fourth proportional to 406,010,878.40, 560,280,009.13 and 220,367,908.28 is: 304,099,570.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,010,878.40 : 560,280,009.13 = 220,367,908.28 : x
  2. Step 2: Convert to fraction form
    406,010,878.40/560,280,009.13 = 220,367,908.28/x
  3. Step 3: Cross multiply
    406,010,878.40x = 560,280,009.13 × 220,367,908.28
  4. Step 4: Simplify right side
    406,010,878.40x = 123,467,733,663,077,408
  5. Step 5: Solve for x
    x = 123,467,733,663,077,408/406,010,878.40
  6. Step 6: Final answer
    x = 304,099,570.31

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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.