Home / 68,649,917.40-102,974,876.10-36,289,315.80

Finding the Fourth Proportional to 68,649,917.40, 102,974,876.10 and 36,289,315.80

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Solution

The fourth proportional to 68,649,917.40, 102,974,876.10 and 36,289,315.80 is: 54,433,973.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,649,917.40 : 102,974,876.10 = 36,289,315.80 : x
  2. Step 2: Convert to fraction form
    68,649,917.40/102,974,876.10 = 36,289,315.80/x
  3. Step 3: Cross multiply
    68,649,917.40x = 102,974,876.10 × 36,289,315.80
  4. Step 4: Simplify right side
    68,649,917.40x = 3,736,887,798,258,772
  5. Step 5: Solve for x
    x = 3,736,887,798,258,772/68,649,917.40
  6. Step 6: Final answer
    x = 54,433,973.70

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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.