Home / 75,377,886.72-103,994,993.79-49,287,676.56

Finding the Fourth Proportional to 75,377,886.72, 103,994,993.79 and 49,287,676.56

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Solution

The fourth proportional to 75,377,886.72, 103,994,993.79 and 49,287,676.56 is: 67,999,672.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,377,886.72 : 103,994,993.79 = 49,287,676.56 : x
  2. Step 2: Convert to fraction form
    75,377,886.72/103,994,993.79 = 49,287,676.56/x
  3. Step 3: Cross multiply
    75,377,886.72x = 103,994,993.79 × 49,287,676.56
  4. Step 4: Simplify right side
    75,377,886.72x = 5,125,671,617,780,729
  5. Step 5: Solve for x
    x = 5,125,671,617,780,729/75,377,886.72
  6. Step 6: Final answer
    x = 67,999,672.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.