Home / 76,896,073.60-115,344,110.40-67,938,121.60

Finding the Fourth Proportional to 76,896,073.60, 115,344,110.40 and 67,938,121.60

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Solution

The fourth proportional to 76,896,073.60, 115,344,110.40 and 67,938,121.60 is: 101,907,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,896,073.60 : 115,344,110.40 = 67,938,121.60 : x
  2. Step 2: Convert to fraction form
    76,896,073.60/115,344,110.40 = 67,938,121.60/x
  3. Step 3: Cross multiply
    76,896,073.60x = 115,344,110.40 × 67,938,121.60
  4. Step 4: Simplify right side
    76,896,073.60x = 7,836,262,198,199,024
  5. Step 5: Solve for x
    x = 7,836,262,198,199,024/76,896,073.60
  6. Step 6: Final answer
    x = 101,907,182.40

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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.