Home / 75,377,885.72-103,994,992.41-49,287,675.56

Finding the Fourth Proportional to 75,377,885.72, 103,994,992.41 and 49,287,675.56

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Solution

The fourth proportional to 75,377,885.72, 103,994,992.41 and 49,287,675.56 is: 67,999,671.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,377,885.72 : 103,994,992.41 = 49,287,675.56 : x
  2. Step 2: Convert to fraction form
    75,377,885.72/103,994,992.41 = 49,287,675.56/x
  3. Step 3: Cross multiply
    75,377,885.72x = 103,994,992.41 × 49,287,675.56
  4. Step 4: Simplify right side
    75,377,885.72x = 5,125,671,445,768,743
  5. Step 5: Solve for x
    x = 5,125,671,445,768,743/75,377,885.72
  6. Step 6: Final answer
    x = 67,999,671.21

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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.