Home / 13,763,920.32-18,988,754.40-7,961,624.64

Finding the Fourth Proportional to 13,763,920.32, 18,988,754.40 and 7,961,624.64

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Solution

The fourth proportional to 13,763,920.32, 18,988,754.40 and 7,961,624.64 is: 10,983,886.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763,920.32 : 18,988,754.40 = 7,961,624.64 : x
  2. Step 2: Convert to fraction form
    13,763,920.32/18,988,754.40 = 7,961,624.64/x
  3. Step 3: Cross multiply
    13,763,920.32x = 18,988,754.40 × 7,961,624.64
  4. Step 4: Simplify right side
    13,763,920.32x = 151,181,334,913,948.41
  5. Step 5: Solve for x
    x = 151,181,334,913,948.41/13,763,920.32
  6. Step 6: Final answer
    x = 10,983,886.23

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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.