Home / 21,476,387.86-29,637,420.08-11,818,595.86

Finding the Fourth Proportional to 21,476,387.86, 29,637,420.08 and 11,818,595.86

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Solution

The fourth proportional to 21,476,387.86, 29,637,420.08 and 11,818,595.86 is: 16,309,664.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,476,387.86 : 29,637,420.08 = 11,818,595.86 : x
  2. Step 2: Convert to fraction form
    21,476,387.86/29,637,420.08 = 11,818,595.86/x
  3. Step 3: Cross multiply
    21,476,387.86x = 29,637,420.08 × 11,818,595.86
  4. Step 4: Simplify right side
    21,476,387.86x = 350,272,690,258,568.81
  5. Step 5: Solve for x
    x = 350,272,690,258,568.81/21,476,387.86
  6. Step 6: Final answer
    x = 16,309,664.95

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Double scale
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1.5x scale

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.