Home / 15,406,697.40-21,260,981.97-8,531,031.84

Finding the Fourth Proportional to 15,406,697.40, 21,260,981.97 and 8,531,031.84

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Solution

The fourth proportional to 15,406,697.40, 21,260,981.97 and 8,531,031.84 is: 11,772,679.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,697.40 : 21,260,981.97 = 8,531,031.84 : x
  2. Step 2: Convert to fraction form
    15,406,697.40/21,260,981.97 = 8,531,031.84/x
  3. Step 3: Cross multiply
    15,406,697.40x = 21,260,981.97 × 8,531,031.84
  4. Step 4: Simplify right side
    15,406,697.40x = 181,378,114,135,735.91
  5. Step 5: Solve for x
    x = 181,378,114,135,735.91/15,406,697.40
  6. Step 6: Final answer
    x = 11,772,679.73

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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.