Home / 438,576,385.31-657,421,655.13-274,928,844.77

Finding the Fourth Proportional to 438,576,385.31, 657,421,655.13 and 274,928,844.77

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Solution

The fourth proportional to 438,576,385.31, 657,421,655.13 and 274,928,844.77 is: 412,115,613.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,576,385.31 : 657,421,655.13 = 274,928,844.77 : x
  2. Step 2: Convert to fraction form
    438,576,385.31/657,421,655.13 = 274,928,844.77/x
  3. Step 3: Cross multiply
    438,576,385.31x = 657,421,655.13 × 274,928,844.77
  4. Step 4: Simplify right side
    438,576,385.31x = 180,744,176,170,850,464
  5. Step 5: Solve for x
    x = 180,744,176,170,850,464/438,576,385.31
  6. Step 6: Final answer
    x = 412,115,613.67

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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.