Home / 13,902,869.80-20,854,304.70-13,335,999.40

Finding the Fourth Proportional to 13,902,869.80, 20,854,304.70 and 13,335,999.40

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Solution

The fourth proportional to 13,902,869.80, 20,854,304.70 and 13,335,999.40 is: 20,003,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902,869.80 : 20,854,304.70 = 13,335,999.40 : x
  2. Step 2: Convert to fraction form
    13,902,869.80/20,854,304.70 = 13,335,999.40/x
  3. Step 3: Cross multiply
    13,902,869.80x = 20,854,304.70 × 13,335,999.40
  4. Step 4: Simplify right side
    13,902,869.80x = 278,112,994,966,617.19
  5. Step 5: Solve for x
    x = 278,112,994,966,617.19/13,902,869.80
  6. Step 6: Final answer
    x = 20,003,999.10

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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.