Home / 275,323,429.49-412,998,867.18-78,616,017.68

Finding the Fourth Proportional to 275,323,429.49, 412,998,867.18 and 78,616,017.68

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Solution

The fourth proportional to 275,323,429.49, 412,998,867.18 and 78,616,017.68 is: 117,927,944.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,323,429.49 : 412,998,867.18 = 78,616,017.68 : x
  2. Step 2: Convert to fraction form
    275,323,429.49/412,998,867.18 = 78,616,017.68/x
  3. Step 3: Cross multiply
    275,323,429.49x = 412,998,867.18 × 78,616,017.68
  4. Step 4: Simplify right side
    275,323,429.49x = 32,468,326,241,977,856
  5. Step 5: Solve for x
    x = 32,468,326,241,977,856/275,323,429.49
  6. Step 6: Final answer
    x = 117,927,944.97

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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.