Home / 210,757,576.36-290,848,898.82-115,386,493.72

Finding the Fourth Proportional to 210,757,576.36, 290,848,898.82 and 115,386,493.72

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Solution

The fourth proportional to 210,757,576.36, 290,848,898.82 and 115,386,493.72 is: 159,235,246.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,757,576.36 : 290,848,898.82 = 115,386,493.72 : x
  2. Step 2: Convert to fraction form
    210,757,576.36/290,848,898.82 = 115,386,493.72/x
  3. Step 3: Cross multiply
    210,757,576.36x = 290,848,898.82 × 115,386,493.72
  4. Step 4: Simplify right side
    210,757,576.36x = 33,560,034,637,162,844
  5. Step 5: Solve for x
    x = 33,560,034,637,162,844/210,757,576.36
  6. Step 6: Final answer
    x = 159,235,246.57

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1.5x scale

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.