Home / 201,448,005.40-302,172,008.10-140,226,002.20

Finding the Fourth Proportional to 201,448,005.40, 302,172,008.10 and 140,226,002.20

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Solution

The fourth proportional to 201,448,005.40, 302,172,008.10 and 140,226,002.20 is: 210,339,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,448,005.40 : 302,172,008.10 = 140,226,002.20 : x
  2. Step 2: Convert to fraction form
    201,448,005.40/302,172,008.10 = 140,226,002.20/x
  3. Step 3: Cross multiply
    201,448,005.40x = 302,172,008.10 × 140,226,002.20
  4. Step 4: Simplify right side
    201,448,005.40x = 42,372,372,672,609,016
  5. Step 5: Solve for x
    x = 42,372,372,672,609,016/201,448,005.40
  6. Step 6: Final answer
    x = 210,339,003.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.