Home / 406,776,357.54-561,327,535.98-221,135,749.38

Finding the Fourth Proportional to 406,776,357.54, 561,327,535.98 and 221,135,749.38

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Solution

The fourth proportional to 406,776,357.54, 561,327,535.98 and 221,135,749.38 is: 305,154,375.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,776,357.54 : 561,327,535.98 = 221,135,749.38 : x
  2. Step 2: Convert to fraction form
    406,776,357.54/561,327,535.98 = 221,135,749.38/x
  3. Step 3: Cross multiply
    406,776,357.54x = 561,327,535.98 × 221,135,749.38
  4. Step 4: Simplify right side
    406,776,357.54x = 124,129,585,316,566,208
  5. Step 5: Solve for x
    x = 124,129,585,316,566,208/406,776,357.54
  6. Step 6: Final answer
    x = 305,154,375.41

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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.