Home / 66,389,540.09-91,617,565.28-38,887,468.34

Finding the Fourth Proportional to 66,389,540.09, 91,617,565.28 and 38,887,468.34

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Solution

The fourth proportional to 66,389,540.09, 91,617,565.28 and 38,887,468.34 is: 53,664,706.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,389,540.09 : 91,617,565.28 = 38,887,468.34 : x
  2. Step 2: Convert to fraction form
    66,389,540.09/91,617,565.28 = 38,887,468.34/x
  3. Step 3: Cross multiply
    66,389,540.09x = 91,617,565.28 × 38,887,468.34
  4. Step 4: Simplify right side
    66,389,540.09x = 3,562,775,168,561,358.50
  5. Step 5: Solve for x
    x = 3,562,775,168,561,358.50/66,389,540.09
  6. Step 6: Final answer
    x = 53,664,706.28

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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.