Home / 82,023,339.80-123,035,009.70-80,747,881.40

Finding the Fourth Proportional to 82,023,339.80, 123,035,009.70 and 80,747,881.40

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Solution

The fourth proportional to 82,023,339.80, 123,035,009.70 and 80,747,881.40 is: 121,121,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,023,339.80 : 123,035,009.70 = 80,747,881.40 : x
  2. Step 2: Convert to fraction form
    82,023,339.80/123,035,009.70 = 80,747,881.40/x
  3. Step 3: Cross multiply
    82,023,339.80x = 123,035,009.70 × 80,747,881.40
  4. Step 4: Simplify right side
    82,023,339.80x = 9,934,816,371,303,450
  5. Step 5: Solve for x
    x = 9,934,816,371,303,450/82,023,339.80
  6. Step 6: Final answer
    x = 121,121,822.10

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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.