Home / 143,010,599.28-197,359,087.32-81,133,545.84

Finding the Fourth Proportional to 143,010,599.28, 197,359,087.32 and 81,133,545.84

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Solution

The fourth proportional to 143,010,599.28, 197,359,087.32 and 81,133,545.84 is: 111,966,823.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,010,599.28 : 197,359,087.32 = 81,133,545.84 : x
  2. Step 2: Convert to fraction form
    143,010,599.28/197,359,087.32 = 81,133,545.84/x
  3. Step 3: Cross multiply
    143,010,599.28x = 197,359,087.32 × 81,133,545.84
  4. Step 4: Simplify right side
    143,010,599.28x = 16,012,442,558,017,782
  5. Step 5: Solve for x
    x = 16,012,442,558,017,782/143,010,599.28
  6. Step 6: Final answer
    x = 111,966,823.71

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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.