Home / 82,456,670.40-123,685,005.60-74,892,177.60

Finding the Fourth Proportional to 82,456,670.40, 123,685,005.60 and 74,892,177.60

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Solution

The fourth proportional to 82,456,670.40, 123,685,005.60 and 74,892,177.60 is: 112,338,266.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,456,670.40 : 123,685,005.60 = 74,892,177.60 : x
  2. Step 2: Convert to fraction form
    82,456,670.40/123,685,005.60 = 74,892,177.60/x
  3. Step 3: Cross multiply
    82,456,670.40x = 123,685,005.60 × 74,892,177.60
  4. Step 4: Simplify right side
    82,456,670.40x = 9,263,039,405,852,194
  5. Step 5: Solve for x
    x = 9,263,039,405,852,194/82,456,670.40
  6. Step 6: Final answer
    x = 112,338,266.40

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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.