Home / 20,760,918.84-28,650,878.82-11,468,968.20

Finding the Fourth Proportional to 20,760,918.84, 28,650,878.82 and 11,468,968.20

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Solution

The fourth proportional to 20,760,918.84, 28,650,878.82 and 11,468,968.20 is: 15,827,624.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760,918.84 : 28,650,878.82 = 11,468,968.20 : x
  2. Step 2: Convert to fraction form
    20,760,918.84/28,650,878.82 = 11,468,968.20/x
  3. Step 3: Cross multiply
    20,760,918.84x = 28,650,878.82 × 11,468,968.20
  4. Step 4: Simplify right side
    20,760,918.84x = 328,596,018,088,633.50
  5. Step 5: Solve for x
    x = 328,596,018,088,633.50/20,760,918.84
  6. Step 6: Final answer
    x = 15,827,624.04

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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.