Home / 142,997,691-214,464,614.58-66,310,754.52

Finding the Fourth Proportional to 142,997,691, 214,464,614.58 and 66,310,754.52

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Solution

The fourth proportional to 142,997,691, 214,464,614.58 and 66,310,754.52 is: 99,451,328.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,997,691 : 214,464,614.58 = 66,310,754.52 : x
  2. Step 2: Convert to fraction form
    142,997,691/214,464,614.58 = 66,310,754.52/x
  3. Step 3: Cross multiply
    142,997,691x = 214,464,614.58 × 66,310,754.52
  4. Step 4: Simplify right side
    142,997,691x = 14,221,310,410,640,794
  5. Step 5: Solve for x
    x = 14,221,310,410,640,794/142,997,691
  6. Step 6: Final answer
    x = 99,451,328.98

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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.