Home / 15,305,020.16-21,120,927.80-8,429,502.22

Finding the Fourth Proportional to 15,305,020.16, 21,120,927.80 and 8,429,502.22

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Solution

The fourth proportional to 15,305,020.16, 21,120,927.80 and 8,429,502.22 is: 11,632,713.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,305,020.16 : 21,120,927.80 = 8,429,502.22 : x
  2. Step 2: Convert to fraction form
    15,305,020.16/21,120,927.80 = 8,429,502.22/x
  3. Step 3: Cross multiply
    15,305,020.16x = 21,120,927.80 × 8,429,502.22
  4. Step 4: Simplify right side
    15,305,020.16x = 178,038,907,683,609.88
  5. Step 5: Solve for x
    x = 178,038,907,683,609.88/15,305,020.16
  6. Step 6: Final answer
    x = 11,632,713.05

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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.