Home / 13,173,128.09-18,180,819.21-7,590,305.76

Finding the Fourth Proportional to 13,173,128.09, 18,180,819.21 and 7,590,305.76

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Solution

The fourth proportional to 13,173,128.09, 18,180,819.21 and 7,590,305.76 is: 10,475,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173,128.09 : 18,180,819.21 = 7,590,305.76 : x
  2. Step 2: Convert to fraction form
    13,173,128.09/18,180,819.21 = 7,590,305.76/x
  3. Step 3: Cross multiply
    13,173,128.09x = 18,180,819.21 × 7,590,305.76
  4. Step 4: Simplify right side
    13,173,128.09x = 137,997,976,771,181.66
  5. Step 5: Solve for x
    x = 137,997,976,771,181.66/13,173,128.09
  6. Step 6: Final answer
    x = 10,475,718.13

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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.