Home / 15,225,082.66-21,008,678.16-8,699,134.60

Finding the Fourth Proportional to 15,225,082.66, 21,008,678.16 and 8,699,134.60

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Solution

The fourth proportional to 15,225,082.66, 21,008,678.16 and 8,699,134.60 is: 12,003,699.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,225,082.66 : 21,008,678.16 = 8,699,134.60 : x
  2. Step 2: Convert to fraction form
    15,225,082.66/21,008,678.16 = 8,699,134.60/x
  3. Step 3: Cross multiply
    15,225,082.66x = 21,008,678.16 × 8,699,134.60
  4. Step 4: Simplify right side
    15,225,082.66x = 182,757,319,081,920.34
  5. Step 5: Solve for x
    x = 182,757,319,081,920.34/15,225,082.66
  6. Step 6: Final answer
    x = 12,003,699.63

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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.