Home / 13,612,964.76-18,785,649.60-7,418,065.32

Finding the Fourth Proportional to 13,612,964.76, 18,785,649.60 and 7,418,065.32

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Solution

The fourth proportional to 13,612,964.76, 18,785,649.60 and 7,418,065.32 is: 10,236,798.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612,964.76 : 18,785,649.60 = 7,418,065.32 : x
  2. Step 2: Convert to fraction form
    13,612,964.76/18,785,649.60 = 7,418,065.32/x
  3. Step 3: Cross multiply
    13,612,964.76x = 18,785,649.60 × 7,418,065.32
  4. Step 4: Simplify right side
    13,612,964.76x = 139,353,175,811,431.89
  5. Step 5: Solve for x
    x = 139,353,175,811,431.89/13,612,964.76
  6. Step 6: Final answer
    x = 10,236,798.40

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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.