Home / 68,103,400.80-102,155,101.20-45,310,389.60

Finding the Fourth Proportional to 68,103,400.80, 102,155,101.20 and 45,310,389.60

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Solution

The fourth proportional to 68,103,400.80, 102,155,101.20 and 45,310,389.60 is: 67,965,584.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,103,400.80 : 102,155,101.20 = 45,310,389.60 : x
  2. Step 2: Convert to fraction form
    68,103,400.80/102,155,101.20 = 45,310,389.60/x
  3. Step 3: Cross multiply
    68,103,400.80x = 102,155,101.20 × 45,310,389.60
  4. Step 4: Simplify right side
    68,103,400.80x = 4,628,687,434,999,428
  5. Step 5: Solve for x
    x = 4,628,687,434,999,428/68,103,400.80
  6. Step 6: Final answer
    x = 67,965,584.40

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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.