Home / 121,417,225.72-167,565,424.02-77,383,992.76

Finding the Fourth Proportional to 121,417,225.72, 167,565,424.02 and 77,383,992.76

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Solution

The fourth proportional to 121,417,225.72, 167,565,424.02 and 77,383,992.76 is: 106,796,061.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,417,225.72 : 167,565,424.02 = 77,383,992.76 : x
  2. Step 2: Convert to fraction form
    121,417,225.72/167,565,424.02 = 77,383,992.76/x
  3. Step 3: Cross multiply
    121,417,225.72x = 167,565,424.02 × 77,383,992.76
  4. Step 4: Simplify right side
    121,417,225.72x = 12,966,881,559,190,012
  5. Step 5: Solve for x
    x = 12,966,881,559,190,012/121,417,225.72
  6. Step 6: Final answer
    x = 106,796,061.95

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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.