Home / 219,390,442.38-328,989,992.31-82,980,166.50

Finding the Fourth Proportional to 219,390,442.38, 328,989,992.31 and 82,980,166.50

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Solution

The fourth proportional to 219,390,442.38, 328,989,992.31 and 82,980,166.50 is: 124,434,063.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,390,442.38 : 328,989,992.31 = 82,980,166.50 : x
  2. Step 2: Convert to fraction form
    219,390,442.38/328,989,992.31 = 82,980,166.50/x
  3. Step 3: Cross multiply
    219,390,442.38x = 328,989,992.31 × 82,980,166.50
  4. Step 4: Simplify right side
    219,390,442.38x = 27,299,644,338,717,520
  5. Step 5: Solve for x
    x = 27,299,644,338,717,520/219,390,442.38
  6. Step 6: Final answer
    x = 124,434,063.96

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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.