Home / 105,153,780.53-157,589,679.89-81,838,676.28

Finding the Fourth Proportional to 105,153,780.53, 157,589,679.89 and 81,838,676.28

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Solution

The fourth proportional to 105,153,780.53, 157,589,679.89 and 81,838,676.28 is: 122,648,284.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,153,780.53 : 157,589,679.89 = 81,838,676.28 : x
  2. Step 2: Convert to fraction form
    105,153,780.53/157,589,679.89 = 81,838,676.28/x
  3. Step 3: Cross multiply
    105,153,780.53x = 157,589,679.89 × 81,838,676.28
  4. Step 4: Simplify right side
    105,153,780.53x = 12,896,930,797,380,104
  5. Step 5: Solve for x
    x = 12,896,930,797,380,104/105,153,780.53
  6. Step 6: Final answer
    x = 122,648,284.57

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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.