Home / 15,686,884.10-21,648,425.77-8,717,855.39

Finding the Fourth Proportional to 15,686,884.10, 21,648,425.77 and 8,717,855.39

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Solution

The fourth proportional to 15,686,884.10, 21,648,425.77 and 8,717,855.39 is: 12,030,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686,884.10 : 21,648,425.77 = 8,717,855.39 : x
  2. Step 2: Convert to fraction form
    15,686,884.10/21,648,425.77 = 8,717,855.39/x
  3. Step 3: Cross multiply
    15,686,884.10x = 21,648,425.77 × 8,717,855.39
  4. Step 4: Simplify right side
    15,686,884.10x = 188,727,845,175,767.25
  5. Step 5: Solve for x
    x = 188,727,845,175,767.25/15,686,884.10
  6. Step 6: Final answer
    x = 12,030,932.60

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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.