Home / 66,389,530.32-91,617,551.84-38,887,458.57

Finding the Fourth Proportional to 66,389,530.32, 91,617,551.84 and 38,887,458.57

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Solution

The fourth proportional to 66,389,530.32, 91,617,551.84 and 38,887,458.57 is: 53,664,692.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,389,530.32 : 91,617,551.84 = 38,887,458.57 : x
  2. Step 2: Convert to fraction form
    66,389,530.32/91,617,551.84 = 38,887,458.57/x
  3. Step 3: Cross multiply
    66,389,530.32x = 91,617,551.84 × 38,887,458.57
  4. Step 4: Simplify right side
    66,389,530.32x = 3,562,773,751,268,389.50
  5. Step 5: Solve for x
    x = 3,562,773,751,268,389.50/66,389,530.32
  6. Step 6: Final answer
    x = 53,664,692.82

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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.