Home / 230,905,854.72-318,529,270.26-142,771,679.28

Finding the Fourth Proportional to 230,905,854.72, 318,529,270.26 and 142,771,679.28

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Solution

The fourth proportional to 230,905,854.72, 318,529,270.26 and 142,771,679.28 is: 196,950,219.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,905,854.72 : 318,529,270.26 = 142,771,679.28 : x
  2. Step 2: Convert to fraction form
    230,905,854.72/318,529,270.26 = 142,771,679.28/x
  3. Step 3: Cross multiply
    230,905,854.72x = 318,529,270.26 × 142,771,679.28
  4. Step 4: Simplify right side
    230,905,854.72x = 45,476,958,814,853,160
  5. Step 5: Solve for x
    x = 45,476,958,814,853,160/230,905,854.72
  6. Step 6: Final answer
    x = 196,950,219.69

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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.