Home / 121,417,224.72-167,565,422.64-77,383,991.76

Finding the Fourth Proportional to 121,417,224.72, 167,565,422.64 and 77,383,991.76

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Solution

The fourth proportional to 121,417,224.72, 167,565,422.64 and 77,383,991.76 is: 106,796,060.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,417,224.72 : 167,565,422.64 = 77,383,991.76 : x
  2. Step 2: Convert to fraction form
    121,417,224.72/167,565,422.64 = 77,383,991.76/x
  3. Step 3: Cross multiply
    121,417,224.72x = 167,565,422.64 × 77,383,991.76
  4. Step 4: Simplify right side
    121,417,224.72x = 12,966,881,284,834,678
  5. Step 5: Solve for x
    x = 12,966,881,284,834,678/121,417,224.72
  6. Step 6: Final answer
    x = 106,796,060.57

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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.