Home / 82,133,999.70-123,200,999.55-49,822,386.90

Finding the Fourth Proportional to 82,133,999.70, 123,200,999.55 and 49,822,386.90

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Solution

The fourth proportional to 82,133,999.70, 123,200,999.55 and 49,822,386.90 is: 74,733,580.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,133,999.70 : 123,200,999.55 = 49,822,386.90 : x
  2. Step 2: Convert to fraction form
    82,133,999.70/123,200,999.55 = 49,822,386.90/x
  3. Step 3: Cross multiply
    82,133,999.70x = 123,200,999.55 × 49,822,386.90
  4. Step 4: Simplify right side
    82,133,999.70x = 6,138,167,866,046,826
  5. Step 5: Solve for x
    x = 6,138,167,866,046,826/82,133,999.70
  6. Step 6: Final answer
    x = 74,733,580.35

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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.