Home / 90,374,170.72-124,776,415.50-69,428,899.96

Finding the Fourth Proportional to 90,374,170.72, 124,776,415.50 and 69,428,899.96

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Solution

The fourth proportional to 90,374,170.72, 124,776,415.50 and 69,428,899.96 is: 95,858,022.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,374,170.72 : 124,776,415.50 = 69,428,899.96 : x
  2. Step 2: Convert to fraction form
    90,374,170.72/124,776,415.50 = 69,428,899.96/x
  3. Step 3: Cross multiply
    90,374,170.72x = 124,776,415.50 × 69,428,899.96
  4. Step 4: Simplify right side
    90,374,170.72x = 8,663,089,269,116,893
  5. Step 5: Solve for x
    x = 8,663,089,269,116,893/90,374,170.72
  6. Step 6: Final answer
    x = 95,858,022.27

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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.