Home / 121,552,054.34-167,735,464.89-66,537,372.74

Finding the Fourth Proportional to 121,552,054.34, 167,735,464.89 and 66,537,372.74

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Solution

The fourth proportional to 121,552,054.34, 167,735,464.89 and 66,537,372.74 is: 91,818,087.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,552,054.34 : 167,735,464.89 = 66,537,372.74 : x
  2. Step 2: Convert to fraction form
    121,552,054.34/167,735,464.89 = 66,537,372.74/x
  3. Step 3: Cross multiply
    121,552,054.34x = 167,735,464.89 × 66,537,372.74
  4. Step 4: Simplify right side
    121,552,054.34x = 11,160,677,149,103,112
  5. Step 5: Solve for x
    x = 11,160,677,149,103,112/121,552,054.34
  6. Step 6: Final answer
    x = 91,818,087.40

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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.