Home / 145,514,123.26-200,814,242.88-79,438,144.64

Finding the Fourth Proportional to 145,514,123.26, 200,814,242.88 and 79,438,144.64

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Solution

The fourth proportional to 145,514,123.26, 200,814,242.88 and 79,438,144.64 is: 109,627,234.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,514,123.26 : 200,814,242.88 = 79,438,144.64 : x
  2. Step 2: Convert to fraction form
    145,514,123.26/200,814,242.88 = 79,438,144.64/x
  3. Step 3: Cross multiply
    145,514,123.26x = 200,814,242.88 × 79,438,144.64
  4. Step 4: Simplify right side
    145,514,123.26x = 15,952,310,870,967,352
  5. Step 5: Solve for x
    x = 15,952,310,870,967,352/145,514,123.26
  6. Step 6: Final answer
    x = 109,627,234.21

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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.