Home / 127,816,981.80-191,725,472.70-107,409,647.40

Finding the Fourth Proportional to 127,816,981.80, 191,725,472.70 and 107,409,647.40

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Solution

The fourth proportional to 127,816,981.80, 191,725,472.70 and 107,409,647.40 is: 161,114,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,816,981.80 : 191,725,472.70 = 107,409,647.40 : x
  2. Step 2: Convert to fraction form
    127,816,981.80/191,725,472.70 = 107,409,647.40/x
  3. Step 3: Cross multiply
    127,816,981.80x = 191,725,472.70 × 107,409,647.40
  4. Step 4: Simplify right side
    127,816,981.80x = 20,593,165,420,305,324
  5. Step 5: Solve for x
    x = 20,593,165,420,305,324/127,816,981.80
  6. Step 6: Final answer
    x = 161,114,471.10

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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.