Home / 20,487,564.90-28,272,498.06-11,194,930.83

Finding the Fourth Proportional to 20,487,564.90, 28,272,498.06 and 11,194,930.83

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Solution

The fourth proportional to 20,487,564.90, 28,272,498.06 and 11,194,930.83 is: 15,448,817.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487,564.90 : 28,272,498.06 = 11,194,930.83 : x
  2. Step 2: Convert to fraction form
    20,487,564.90/28,272,498.06 = 11,194,930.83/x
  3. Step 3: Cross multiply
    20,487,564.90x = 28,272,498.06 × 11,194,930.83
  4. Step 4: Simplify right side
    20,487,564.90x = 316,508,660,173,009.19
  5. Step 5: Solve for x
    x = 316,508,660,173,009.19/20,487,564.90
  6. Step 6: Final answer
    x = 15,448,817.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.