Home / 122,284,949.54-168,688,911.57-72,690,047.06

Finding the Fourth Proportional to 122,284,949.54, 168,688,911.57 and 72,690,047.06

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Solution

The fourth proportional to 122,284,949.54, 168,688,911.57 and 72,690,047.06 is: 100,274,031.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,284,949.54 : 168,688,911.57 = 72,690,047.06 : x
  2. Step 2: Convert to fraction form
    122,284,949.54/168,688,911.57 = 72,690,047.06/x
  3. Step 3: Cross multiply
    122,284,949.54x = 168,688,911.57 × 72,690,047.06
  4. Step 4: Simplify right side
    122,284,949.54x = 12,262,004,920,523,478
  5. Step 5: Solve for x
    x = 12,262,004,920,523,478/122,284,949.54
  6. Step 6: Final answer
    x = 100,274,031.81

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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.