Home / 517,742,630.92-776,616,849.62-172,695,310.66

Finding the Fourth Proportional to 517,742,630.92, 776,616,849.62 and 172,695,310.66

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Solution

The fourth proportional to 517,742,630.92, 776,616,849.62 and 172,695,310.66 is: 259,043,934.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,742,630.92 : 776,616,849.62 = 172,695,310.66 : x
  2. Step 2: Convert to fraction form
    517,742,630.92/776,616,849.62 = 172,695,310.66/x
  3. Step 3: Cross multiply
    517,742,630.92x = 776,616,849.62 × 172,695,310.66
  4. Step 4: Simplify right side
    517,742,630.92x = 134,118,088,108,052,928
  5. Step 5: Solve for x
    x = 134,118,088,108,052,928/517,742,630.92
  6. Step 6: Final answer
    x = 259,043,934.38

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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.