Home / 21,117,609.55-29,142,301.41-11,459,817.55

Finding the Fourth Proportional to 21,117,609.55, 29,142,301.41 and 11,459,817.55

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Solution

The fourth proportional to 21,117,609.55, 29,142,301.41 and 11,459,817.55 is: 15,814,548.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,117,609.55 : 29,142,301.41 = 11,459,817.55 : x
  2. Step 2: Convert to fraction form
    21,117,609.55/29,142,301.41 = 11,459,817.55/x
  3. Step 3: Cross multiply
    21,117,609.55x = 29,142,301.41 × 11,459,817.55
  4. Step 4: Simplify right side
    21,117,609.55x = 333,965,457,145,707.75
  5. Step 5: Solve for x
    x = 333,965,457,145,707.75/21,117,609.55
  6. Step 6: Final answer
    x = 15,814,548.34

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Double scale
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1.5x scale

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.