Home / 121,781,715.12-167,896,191.96-96,746,889.84

Finding the Fourth Proportional to 121,781,715.12, 167,896,191.96 and 96,746,889.84

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Solution

The fourth proportional to 121,781,715.12, 167,896,191.96 and 96,746,889.84 is: 133,381,553.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,781,715.12 : 167,896,191.96 = 96,746,889.84 : x
  2. Step 2: Convert to fraction form
    121,781,715.12/167,896,191.96 = 96,746,889.84/x
  3. Step 3: Cross multiply
    121,781,715.12x = 167,896,191.96 × 96,746,889.84
  4. Step 4: Simplify right side
    121,781,715.12x = 16,243,434,388,109,616
  5. Step 5: Solve for x
    x = 16,243,434,388,109,616/121,781,715.12
  6. Step 6: Final answer
    x = 133,381,553.81

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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.