Home / 290,927,692.40-401,488,719.14-158,777,170.28

Finding the Fourth Proportional to 290,927,692.40, 401,488,719.14 and 158,777,170.28

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Solution

The fourth proportional to 290,927,692.40, 401,488,719.14 and 158,777,170.28 is: 219,117,135.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,927,692.40 : 401,488,719.14 = 158,777,170.28 : x
  2. Step 2: Convert to fraction form
    290,927,692.40/401,488,719.14 = 158,777,170.28/x
  3. Step 3: Cross multiply
    290,927,692.40x = 401,488,719.14 × 158,777,170.28
  4. Step 4: Simplify right side
    290,927,692.40x = 63,747,242,721,589,544
  5. Step 5: Solve for x
    x = 63,747,242,721,589,544/290,927,692.40
  6. Step 6: Final answer
    x = 219,117,135.93

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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.