Home / 21,026,145.20-31,530,001.80-9,662,817.20

Finding the Fourth Proportional to 21,026,145.20, 31,530,001.80 and 9,662,817.20

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Solution

The fourth proportional to 21,026,145.20, 31,530,001.80 and 9,662,817.20 is: 14,489,990.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026,145.20 : 31,530,001.80 = 9,662,817.20 : x
  2. Step 2: Convert to fraction form
    21,026,145.20/31,530,001.80 = 9,662,817.20/x
  3. Step 3: Cross multiply
    21,026,145.20x = 31,530,001.80 × 9,662,817.20
  4. Step 4: Simplify right side
    21,026,145.20x = 304,668,643,709,070.94
  5. Step 5: Solve for x
    x = 304,668,643,709,070.94/21,026,145.20
  6. Step 6: Final answer
    x = 14,489,990.48

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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.