Home / 21,016,302.48-29,001,839.40-12,320,266.86

Finding the Fourth Proportional to 21,016,302.48, 29,001,839.40 and 12,320,266.86

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Solution

The fourth proportional to 21,016,302.48, 29,001,839.40 and 12,320,266.86 is: 17,001,582.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,016,302.48 : 29,001,839.40 = 12,320,266.86 : x
  2. Step 2: Convert to fraction form
    21,016,302.48/29,001,839.40 = 12,320,266.86/x
  3. Step 3: Cross multiply
    21,016,302.48x = 29,001,839.40 × 12,320,266.86
  4. Step 4: Simplify right side
    21,016,302.48x = 357,310,400,838,862.25
  5. Step 5: Solve for x
    x = 357,310,400,838,862.25/21,016,302.48
  6. Step 6: Final answer
    x = 17,001,582.52

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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.