Home / 507,530,675.20-700,392,331.80-287,514,101.20

Finding the Fourth Proportional to 507,530,675.20, 700,392,331.80 and 287,514,101.20

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Solution

The fourth proportional to 507,530,675.20, 700,392,331.80 and 287,514,101.20 is: 396,769,459.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,530,675.20 : 700,392,331.80 = 287,514,101.20 : x
  2. Step 2: Convert to fraction form
    507,530,675.20/700,392,331.80 = 287,514,101.20/x
  3. Step 3: Cross multiply
    507,530,675.20x = 700,392,331.80 × 287,514,101.20
  4. Step 4: Simplify right side
    507,530,675.20x = 201,372,671,764,849,152
  5. Step 5: Solve for x
    x = 201,372,671,764,849,152/507,530,675.20
  6. Step 6: Final answer
    x = 396,769,459.67

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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.