Home / 20,695,827.84-28,561,126.08-11,528,476.80

Finding the Fourth Proportional to 20,695,827.84, 28,561,126.08 and 11,528,476.80

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Solution

The fourth proportional to 20,695,827.84, 28,561,126.08 and 11,528,476.80 is: 15,909,790.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695,827.84 : 28,561,126.08 = 11,528,476.80 : x
  2. Step 2: Convert to fraction form
    20,695,827.84/28,561,126.08 = 11,528,476.80/x
  3. Step 3: Cross multiply
    20,695,827.84x = 28,561,126.08 × 11,528,476.80
  4. Step 4: Simplify right side
    20,695,827.84x = 329,266,279,395,154.94
  5. Step 5: Solve for x
    x = 329,266,279,395,154.94/20,695,827.84
  6. Step 6: Final answer
    x = 15,909,790.22

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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.