Home / 203,133,736.80-280,410,333.36-137,143,587.36

Finding the Fourth Proportional to 203,133,736.80, 280,410,333.36 and 137,143,587.36

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Solution

The fourth proportional to 203,133,736.80, 280,410,333.36 and 137,143,587.36 is: 189,316,061.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,133,736.80 : 280,410,333.36 = 137,143,587.36 : x
  2. Step 2: Convert to fraction form
    203,133,736.80/280,410,333.36 = 137,143,587.36/x
  3. Step 3: Cross multiply
    203,133,736.80x = 280,410,333.36 × 137,143,587.36
  4. Step 4: Simplify right side
    203,133,736.80x = 38,456,479,049,803,888
  5. Step 5: Solve for x
    x = 38,456,479,049,803,888/203,133,736.80
  6. Step 6: Final answer
    x = 189,316,061.70

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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.