Home / 15,272,819.36-21,076,301.76-8,397,241.28

Finding the Fourth Proportional to 15,272,819.36, 21,076,301.76 and 8,397,241.28

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Solution

The fourth proportional to 15,272,819.36, 21,076,301.76 and 8,397,241.28 is: 11,588,089.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,272,819.36 : 21,076,301.76 = 8,397,241.28 : x
  2. Step 2: Convert to fraction form
    15,272,819.36/21,076,301.76 = 8,397,241.28/x
  3. Step 3: Cross multiply
    15,272,819.36x = 21,076,301.76 × 8,397,241.28
  4. Step 4: Simplify right side
    15,272,819.36x = 176,982,791,168,808.66
  5. Step 5: Solve for x
    x = 176,982,791,168,808.66/15,272,819.36
  6. Step 6: Final answer
    x = 11,588,089.07

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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.