Home / 82,101,136.32-123,066,673.80-67,571,539.44

Finding the Fourth Proportional to 82,101,136.32, 123,066,673.80 and 67,571,539.44

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Solution

The fourth proportional to 82,101,136.32, 123,066,673.80 and 67,571,539.44 is: 101,287,326.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,101,136.32 : 123,066,673.80 = 67,571,539.44 : x
  2. Step 2: Convert to fraction form
    82,101,136.32/123,066,673.80 = 67,571,539.44/x
  3. Step 3: Cross multiply
    82,101,136.32x = 123,066,673.80 × 67,571,539.44
  4. Step 4: Simplify right side
    82,101,136.32x = 8,315,804,602,426,314
  5. Step 5: Solve for x
    x = 8,315,804,602,426,314/82,101,136.32
  6. Step 6: Final answer
    x = 101,287,326.52

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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.