Home / 13,718,582.86-18,930,279.95-7,919,232.95

Finding the Fourth Proportional to 13,718,582.86, 18,930,279.95 and 7,919,232.95

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Solution

The fourth proportional to 13,718,582.86, 18,930,279.95 and 7,919,232.95 is: 10,927,753.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718,582.86 : 18,930,279.95 = 7,919,232.95 : x
  2. Step 2: Convert to fraction form
    13,718,582.86/18,930,279.95 = 7,919,232.95/x
  3. Step 3: Cross multiply
    13,718,582.86x = 18,930,279.95 × 7,919,232.95
  4. Step 4: Simplify right side
    13,718,582.86x = 149,913,296,732,764.34
  5. Step 5: Solve for x
    x = 149,913,296,732,764.34/13,718,582.86
  6. Step 6: Final answer
    x = 10,927,753.85

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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.