Home / 38,121,071.72-52,607,407.79-20,717,420.54

Finding the Fourth Proportional to 38,121,071.72, 52,607,407.79 and 20,717,420.54

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Solution

The fourth proportional to 38,121,071.72, 52,607,407.79 and 20,717,420.54 is: 28,590,219.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,121,071.72 : 52,607,407.79 = 20,717,420.54 : x
  2. Step 2: Convert to fraction form
    38,121,071.72/52,607,407.79 = 20,717,420.54/x
  3. Step 3: Cross multiply
    38,121,071.72x = 52,607,407.79 × 20,717,420.54
  4. Step 4: Simplify right side
    38,121,071.72x = 1,089,889,790,493,458.50
  5. Step 5: Solve for x
    x = 1,089,889,790,493,458.50/38,121,071.72
  6. Step 6: Final answer
    x = 28,590,219.04

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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.