Home / 66,648,900.91-91,953,207.44-38,765,692.15

Finding the Fourth Proportional to 66,648,900.91, 91,953,207.44 and 38,765,692.15

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Solution

The fourth proportional to 66,648,900.91, 91,953,207.44 and 38,765,692.15 is: 53,483,698.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,648,900.91 : 91,953,207.44 = 38,765,692.15 : x
  2. Step 2: Convert to fraction form
    66,648,900.91/91,953,207.44 = 38,765,692.15/x
  3. Step 3: Cross multiply
    66,648,900.91x = 91,953,207.44 × 38,765,692.15
  4. Step 4: Simplify right side
    66,648,900.91x = 3,564,629,731,824,129.50
  5. Step 5: Solve for x
    x = 3,564,629,731,824,129.50/66,648,900.91
  6. Step 6: Final answer
    x = 53,483,698.65

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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.