Home / 42,768,138.70-64,152,208.05-41,917,833.10

Finding the Fourth Proportional to 42,768,138.70, 64,152,208.05 and 41,917,833.10

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Solution

The fourth proportional to 42,768,138.70, 64,152,208.05 and 41,917,833.10 is: 62,876,749.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,138.70 : 64,152,208.05 = 41,917,833.10 : x
  2. Step 2: Convert to fraction form
    42,768,138.70/64,152,208.05 = 41,917,833.10/x
  3. Step 3: Cross multiply
    42,768,138.70x = 64,152,208.05 × 41,917,833.10
  4. Step 4: Simplify right side
    42,768,138.70x = 2,689,121,550,036,376.50
  5. Step 5: Solve for x
    x = 2,689,121,550,036,376.50/42,768,138.70
  6. Step 6: Final answer
    x = 62,876,749.65

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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.