Home / 12,109,110.15-16,714,621.35-7,215,867.21

Finding the Fourth Proportional to 12,109,110.15, 16,714,621.35 and 7,215,867.21

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Solution

The fourth proportional to 12,109,110.15, 16,714,621.35 and 7,215,867.21 is: 9,960,309.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109,110.15 : 16,714,621.35 = 7,215,867.21 : x
  2. Step 2: Convert to fraction form
    12,109,110.15/16,714,621.35 = 7,215,867.21/x
  3. Step 3: Cross multiply
    12,109,110.15x = 16,714,621.35 × 7,215,867.21
  4. Step 4: Simplify right side
    12,109,110.15x = 120,610,488,127,030.94
  5. Step 5: Solve for x
    x = 120,610,488,127,030.94/12,109,110.15
  6. Step 6: Final answer
    x = 9,960,309.77

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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.