Home / 13,104,869.40-19,657,304.10-11,971,128.60

Finding the Fourth Proportional to 13,104,869.40, 19,657,304.10 and 11,971,128.60

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Solution

The fourth proportional to 13,104,869.40, 19,657,304.10 and 11,971,128.60 is: 17,956,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104,869.40 : 19,657,304.10 = 11,971,128.60 : x
  2. Step 2: Convert to fraction form
    13,104,869.40/19,657,304.10 = 11,971,128.60/x
  3. Step 3: Cross multiply
    13,104,869.40x = 19,657,304.10 × 11,971,128.60
  4. Step 4: Simplify right side
    13,104,869.40x = 235,320,115,310,407.28
  5. Step 5: Solve for x
    x = 235,320,115,310,407.28/13,104,869.40
  6. Step 6: Final answer
    x = 17,956,692.90

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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.