Home / 145,129,309.92-200,278,725.84-79,049,604.96

Finding the Fourth Proportional to 145,129,309.92, 200,278,725.84 and 79,049,604.96

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Solution

The fourth proportional to 145,129,309.92, 200,278,725.84 and 79,049,604.96 is: 109,088,606.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,129,309.92 : 200,278,725.84 = 79,049,604.96 : x
  2. Step 2: Convert to fraction form
    145,129,309.92/200,278,725.84 = 79,049,604.96/x
  3. Step 3: Cross multiply
    145,129,309.92x = 200,278,725.84 × 79,049,604.96
  4. Step 4: Simplify right side
    145,129,309.92x = 15,831,954,159,544,144
  5. Step 5: Solve for x
    x = 15,831,954,159,544,144/145,129,309.92
  6. Step 6: Final answer
    x = 109,088,606.35

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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.