Home / 38,649,681.36-53,336,733.12-21,247,147.80

Finding the Fourth Proportional to 38,649,681.36, 53,336,733.12 and 21,247,147.80

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Solution

The fourth proportional to 38,649,681.36, 53,336,733.12 and 21,247,147.80 is: 29,321,158.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,649,681.36 : 53,336,733.12 = 21,247,147.80 : x
  2. Step 2: Convert to fraction form
    38,649,681.36/53,336,733.12 = 21,247,147.80/x
  3. Step 3: Cross multiply
    38,649,681.36x = 53,336,733.12 × 21,247,147.80
  4. Step 4: Simplify right side
    38,649,681.36x = 1,133,253,451,769,795
  5. Step 5: Solve for x
    x = 1,133,253,451,769,795/38,649,681.36
  6. Step 6: Final answer
    x = 29,321,158.98

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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.