Home / 13,558,161.18-18,705,710.30-7,676,991.76

Finding the Fourth Proportional to 13,558,161.18, 18,705,710.30 and 7,676,991.76

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Solution

The fourth proportional to 13,558,161.18, 18,705,710.30 and 7,676,991.76 is: 10,591,671.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558,161.18 : 18,705,710.30 = 7,676,991.76 : x
  2. Step 2: Convert to fraction form
    13,558,161.18/18,705,710.30 = 7,676,991.76/x
  3. Step 3: Cross multiply
    13,558,161.18x = 18,705,710.30 × 7,676,991.76
  4. Step 4: Simplify right side
    13,558,161.18x = 143,603,583,838,047.12
  5. Step 5: Solve for x
    x = 143,603,583,838,047.12/13,558,161.18
  6. Step 6: Final answer
    x = 10,591,671.09

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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.