Home / 391,810,653.36-587,715,892.56-142,834,576.50

Finding the Fourth Proportional to 391,810,653.36, 587,715,892.56 and 142,834,576.50

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Solution

The fourth proportional to 391,810,653.36, 587,715,892.56 and 142,834,576.50 is: 214,251,832.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,810,653.36 : 587,715,892.56 = 142,834,576.50 : x
  2. Step 2: Convert to fraction form
    391,810,653.36/587,715,892.56 = 142,834,576.50/x
  3. Step 3: Cross multiply
    391,810,653.36x = 587,715,892.56 × 142,834,576.50
  4. Step 4: Simplify right side
    391,810,653.36x = 83,946,150,616,127,088
  5. Step 5: Solve for x
    x = 83,946,150,616,127,088/391,810,653.36
  6. Step 6: Final answer
    x = 214,251,832.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.