Home / 81,789,071.22-112,867,101.81-45,119,632.50

Finding the Fourth Proportional to 81,789,071.22, 112,867,101.81 and 45,119,632.50

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Solution

The fourth proportional to 81,789,071.22, 112,867,101.81 and 45,119,632.50 is: 62,264,090.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,789,071.22 : 112,867,101.81 = 45,119,632.50 : x
  2. Step 2: Convert to fraction form
    81,789,071.22/112,867,101.81 = 45,119,632.50/x
  3. Step 3: Cross multiply
    81,789,071.22x = 112,867,101.81 × 45,119,632.50
  4. Step 4: Simplify right side
    81,789,071.22x = 5,092,522,155,007,285
  5. Step 5: Solve for x
    x = 5,092,522,155,007,285/81,789,071.22
  6. Step 6: Final answer
    x = 62,264,090.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.