Home / 15,406,696.88-21,260,981.28-8,531,031.32

Finding the Fourth Proportional to 15,406,696.88, 21,260,981.28 and 8,531,031.32

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Solution

The fourth proportional to 15,406,696.88, 21,260,981.28 and 8,531,031.32 is: 11,772,679.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,696.88 : 21,260,981.28 = 8,531,031.32 : x
  2. Step 2: Convert to fraction form
    15,406,696.88/21,260,981.28 = 8,531,031.32/x
  3. Step 3: Cross multiply
    15,406,696.88x = 21,260,981.28 × 8,531,031.32
  4. Step 4: Simplify right side
    15,406,696.88x = 181,378,097,193,613.72
  5. Step 5: Solve for x
    x = 181,378,097,193,613.72/15,406,696.88
  6. Step 6: Final answer
    x = 11,772,679.02

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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.