Home / 13,101,873.88-18,081,931.32-7,876,573.66

Finding the Fourth Proportional to 13,101,873.88, 18,081,931.32 and 7,876,573.66

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Solution

The fourth proportional to 13,101,873.88, 18,081,931.32 and 7,876,573.66 is: 10,870,480.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101,873.88 : 18,081,931.32 = 7,876,573.66 : x
  2. Step 2: Convert to fraction form
    13,101,873.88/18,081,931.32 = 7,876,573.66/x
  3. Step 3: Cross multiply
    13,101,873.88x = 18,081,931.32 × 7,876,573.66
  4. Step 4: Simplify right side
    13,101,873.88x = 142,423,663,957,041.03
  5. Step 5: Solve for x
    x = 142,423,663,957,041.03/13,101,873.88
  6. Step 6: Final answer
    x = 10,870,480.46

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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.