Home / 212,123,514.10-292,564,613.87-137,808,018.96

Finding the Fourth Proportional to 212,123,514.10, 292,564,613.87 and 137,808,018.96

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Solution

The fourth proportional to 212,123,514.10, 292,564,613.87 and 137,808,018.96 is: 190,067,329.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,123,514.10 : 292,564,613.87 = 137,808,018.96 : x
  2. Step 2: Convert to fraction form
    212,123,514.10/292,564,613.87 = 137,808,018.96/x
  3. Step 3: Cross multiply
    212,123,514.10x = 292,564,613.87 × 137,808,018.96
  4. Step 4: Simplify right side
    212,123,514.10x = 40,317,749,853,262,784
  5. Step 5: Solve for x
    x = 40,317,749,853,262,784/212,123,514.10
  6. Step 6: Final answer
    x = 190,067,329.52

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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.