Home / 208,612,997.32-312,911,774.38-84,169,444.36

Finding the Fourth Proportional to 208,612,997.32, 312,911,774.38 and 84,169,444.36

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Solution

The fourth proportional to 208,612,997.32, 312,911,774.38 and 84,169,444.36 is: 126,251,051.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,612,997.32 : 312,911,774.38 = 84,169,444.36 : x
  2. Step 2: Convert to fraction form
    208,612,997.32/312,911,774.38 = 84,169,444.36/x
  3. Step 3: Cross multiply
    208,612,997.32x = 312,911,774.38 × 84,169,444.36
  4. Step 4: Simplify right side
    208,612,997.32x = 26,337,610,183,266,284
  5. Step 5: Solve for x
    x = 26,337,610,183,266,284/208,612,997.32
  6. Step 6: Final answer
    x = 126,251,051.09

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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.