Home / 77,193,749.60-115,790,624.40-66,432,069.35

Finding the Fourth Proportional to 77,193,749.60, 115,790,624.40 and 66,432,069.35

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Solution

The fourth proportional to 77,193,749.60, 115,790,624.40 and 66,432,069.35 is: 99,648,104.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,193,749.60 : 115,790,624.40 = 66,432,069.35 : x
  2. Step 2: Convert to fraction form
    77,193,749.60/115,790,624.40 = 66,432,069.35/x
  3. Step 3: Cross multiply
    77,193,749.60x = 115,790,624.40 × 66,432,069.35
  4. Step 4: Simplify right side
    77,193,749.60x = 7,692,210,790,220,603
  5. Step 5: Solve for x
    x = 7,692,210,790,220,603/77,193,749.60
  6. Step 6: Final answer
    x = 99,648,104.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.