Home / 131,397,545.37-181,329,787.51-72,664,162.28

Finding the Fourth Proportional to 131,397,545.37, 181,329,787.51 and 72,664,162.28

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Solution

The fourth proportional to 131,397,545.37, 181,329,787.51 and 72,664,162.28 is: 100,277,193.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,397,545.37 : 181,329,787.51 = 72,664,162.28 : x
  2. Step 2: Convert to fraction form
    131,397,545.37/181,329,787.51 = 72,664,162.28/x
  3. Step 3: Cross multiply
    131,397,545.37x = 181,329,787.51 × 72,664,162.28
  4. Step 4: Simplify right side
    131,397,545.37x = 13,176,177,104,917,908
  5. Step 5: Solve for x
    x = 13,176,177,104,917,908/131,397,545.37
  6. Step 6: Final answer
    x = 100,277,193.67

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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.