Home / 507,530,763.96-700,392,454.20-287,514,189.96

Finding the Fourth Proportional to 507,530,763.96, 700,392,454.20 and 287,514,189.96

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Solution

The fourth proportional to 507,530,763.96, 700,392,454.20 and 287,514,189.96 is: 396,769,582.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,530,763.96 : 700,392,454.20 = 287,514,189.96 : x
  2. Step 2: Convert to fraction form
    507,530,763.96/700,392,454.20 = 287,514,189.96/x
  3. Step 3: Cross multiply
    507,530,763.96x = 700,392,454.20 × 287,514,189.96
  4. Step 4: Simplify right side
    507,530,763.96x = 201,372,769,123,409,408
  5. Step 5: Solve for x
    x = 201,372,769,123,409,408/507,530,763.96
  6. Step 6: Final answer
    x = 396,769,582.11

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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.