Home / 138,605,285.00-208,112,308.11-77,314,194.47

Finding the Fourth Proportional to 138,605,285.00, 208,112,308.11 and 77,314,194.47

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Solution

The fourth proportional to 138,605,285.00, 208,112,308.11 and 77,314,194.47 is: 116,085,295.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,605,285.00 : 208,112,308.11 = 77,314,194.47 : x
  2. Step 2: Convert to fraction form
    138,605,285.00/208,112,308.11 = 77,314,194.47/x
  3. Step 3: Cross multiply
    138,605,285.00x = 208,112,308.11 × 77,314,194.47
  4. Step 4: Simplify right side
    138,605,285.00x = 16,090,035,459,776,538
  5. Step 5: Solve for x
    x = 16,090,035,459,776,538/138,605,285.00
  6. Step 6: Final answer
    x = 116,085,295.45

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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.