Home / 143,988,450.13-198,703,932.80-81,277,747.93

Finding the Fourth Proportional to 143,988,450.13, 198,703,932.80 and 81,277,747.93

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Solution

The fourth proportional to 143,988,450.13, 198,703,932.80 and 81,277,747.93 is: 112,163,219.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,988,450.13 : 198,703,932.80 = 81,277,747.93 : x
  2. Step 2: Convert to fraction form
    143,988,450.13/198,703,932.80 = 81,277,747.93/x
  3. Step 3: Cross multiply
    143,988,450.13x = 198,703,932.80 × 81,277,747.93
  4. Step 4: Simplify right side
    143,988,450.13x = 16,150,208,161,914,908
  5. Step 5: Solve for x
    x = 16,150,208,161,914,908/143,988,450.13
  6. Step 6: Final answer
    x = 112,163,219.67

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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.