Home / 13,187,795.10-19,781,692.65-11,886,092.70

Finding the Fourth Proportional to 13,187,795.10, 19,781,692.65 and 11,886,092.70

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Solution

The fourth proportional to 13,187,795.10, 19,781,692.65 and 11,886,092.70 is: 17,829,139.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187,795.10 : 19,781,692.65 = 11,886,092.70 : x
  2. Step 2: Convert to fraction form
    13,187,795.10/19,781,692.65 = 11,886,092.70/x
  3. Step 3: Cross multiply
    13,187,795.10x = 19,781,692.65 × 11,886,092.70
  4. Step 4: Simplify right side
    13,187,795.10x = 235,127,032,600,808.62
  5. Step 5: Solve for x
    x = 235,127,032,600,808.62/13,187,795.10
  6. Step 6: Final answer
    x = 17,829,139.05

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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.