Home / 290,927,700.34-401,488,730.09-158,777,178.21

Finding the Fourth Proportional to 290,927,700.34, 401,488,730.09 and 158,777,178.21

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Solution

The fourth proportional to 290,927,700.34, 401,488,730.09 and 158,777,178.21 is: 219,117,146.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,927,700.34 : 401,488,730.09 = 158,777,178.21 : x
  2. Step 2: Convert to fraction form
    290,927,700.34/401,488,730.09 = 158,777,178.21/x
  3. Step 3: Cross multiply
    290,927,700.34x = 401,488,730.09 × 158,777,178.21
  4. Step 4: Simplify right side
    290,927,700.34x = 63,747,247,646,608,048
  5. Step 5: Solve for x
    x = 63,747,247,646,608,048/290,927,700.34
  6. Step 6: Final answer
    x = 219,117,146.88

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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.