Home / 15,258,071.28-21,056,050.20-8,382,405.36

Finding the Fourth Proportional to 15,258,071.28, 21,056,050.20 and 8,382,405.36

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Solution

The fourth proportional to 15,258,071.28, 21,056,050.20 and 8,382,405.36 is: 11,567,670.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,258,071.28 : 21,056,050.20 = 8,382,405.36 : x
  2. Step 2: Convert to fraction form
    15,258,071.28/21,056,050.20 = 8,382,405.36/x
  3. Step 3: Cross multiply
    15,258,071.28x = 21,056,050.20 × 8,382,405.36
  4. Step 4: Simplify right side
    15,258,071.28x = 176,500,348,056,909.06
  5. Step 5: Solve for x
    x = 176,500,348,056,909.06/15,258,071.28
  6. Step 6: Final answer
    x = 11,567,670.96

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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.