Home / 27,771,071.88-38,321,161.62-15,380,840.72

Finding the Fourth Proportional to 27,771,071.88, 38,321,161.62 and 15,380,840.72

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Solution

The fourth proportional to 27,771,071.88, 38,321,161.62 and 15,380,840.72 is: 21,223,944.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,771,071.88 : 38,321,161.62 = 15,380,840.72 : x
  2. Step 2: Convert to fraction form
    27,771,071.88/38,321,161.62 = 15,380,840.72/x
  3. Step 3: Cross multiply
    27,771,071.88x = 38,321,161.62 × 15,380,840.72
  4. Step 4: Simplify right side
    27,771,071.88x = 589,411,683,082,597.12
  5. Step 5: Solve for x
    x = 589,411,683,082,597.12/27,771,071.88
  6. Step 6: Final answer
    x = 21,223,944.31

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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.