Home / 65,388,438.08-90,243,131.88-36,022,779.88

Finding the Fourth Proportional to 65,388,438.08, 90,243,131.88 and 36,022,779.88

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Solution

The fourth proportional to 65,388,438.08, 90,243,131.88 and 36,022,779.88 is: 49,715,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,388,438.08 : 90,243,131.88 = 36,022,779.88 : x
  2. Step 2: Convert to fraction form
    65,388,438.08/90,243,131.88 = 36,022,779.88/x
  3. Step 3: Cross multiply
    65,388,438.08x = 90,243,131.88 × 36,022,779.88
  4. Step 4: Simplify right side
    65,388,438.08x = 3,250,808,475,395,050.50
  5. Step 5: Solve for x
    x = 3,250,808,475,395,050.50/65,388,438.08
  6. Step 6: Final answer
    x = 49,715,340.68

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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.