Home / 13,972,702.40-20,917,063.20-8,290,001.60

Finding the Fourth Proportional to 13,972,702.40, 20,917,063.20 and 8,290,001.60

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Solution

The fourth proportional to 13,972,702.40, 20,917,063.20 and 8,290,001.60 is: 12,410,089.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972,702.40 : 20,917,063.20 = 8,290,001.60 : x
  2. Step 2: Convert to fraction form
    13,972,702.40/20,917,063.20 = 8,290,001.60/x
  3. Step 3: Cross multiply
    13,972,702.40x = 20,917,063.20 × 8,290,001.60
  4. Step 4: Simplify right side
    13,972,702.40x = 173,402,487,395,301.09
  5. Step 5: Solve for x
    x = 173,402,487,395,301.09/13,972,702.40
  6. Step 6: Final answer
    x = 12,410,089.50

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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.