Home / 15,406,775.16-21,261,089.88-8,531,109.60

Finding the Fourth Proportional to 15,406,775.16, 21,261,089.88 and 8,531,109.60

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Solution

The fourth proportional to 15,406,775.16, 21,261,089.88 and 8,531,109.60 is: 11,772,787.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,775.16 : 21,261,089.88 = 8,531,109.60 : x
  2. Step 2: Convert to fraction form
    15,406,775.16/21,261,089.88 = 8,531,109.60/x
  3. Step 3: Cross multiply
    15,406,775.16x = 21,261,089.88 × 8,531,109.60
  4. Step 4: Simplify right side
    15,406,775.16x = 181,380,687,981,730.84
  5. Step 5: Solve for x
    x = 181,380,687,981,730.84/15,406,775.16
  6. Step 6: Final answer
    x = 11,772,787.37

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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.