Home / 93,245,939.20-139,868,908.80-72,838,604.80

Finding the Fourth Proportional to 93,245,939.20, 139,868,908.80 and 72,838,604.80

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Solution

The fourth proportional to 93,245,939.20, 139,868,908.80 and 72,838,604.80 is: 109,257,907.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,245,939.20 : 139,868,908.80 = 72,838,604.80 : x
  2. Step 2: Convert to fraction form
    93,245,939.20/139,868,908.80 = 72,838,604.80/x
  3. Step 3: Cross multiply
    93,245,939.20x = 139,868,908.80 × 72,838,604.80
  4. Step 4: Simplify right side
    93,245,939.20x = 10,187,856,171,890,442
  5. Step 5: Solve for x
    x = 10,187,856,171,890,442/93,245,939.20
  6. Step 6: Final answer
    x = 109,257,907.20

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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.