Home / 57,129,731.23-78,863,161.46-38,570,009.22

Finding the Fourth Proportional to 57,129,731.23, 78,863,161.46 and 38,570,009.22

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Solution

The fourth proportional to 57,129,731.23, 78,863,161.46 and 38,570,009.22 is: 53,242,905.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,129,731.23 : 78,863,161.46 = 38,570,009.22 : x
  2. Step 2: Convert to fraction form
    57,129,731.23/78,863,161.46 = 38,570,009.22/x
  3. Step 3: Cross multiply
    57,129,731.23x = 78,863,161.46 × 38,570,009.22
  4. Step 4: Simplify right side
    57,129,731.23x = 3,041,752,864,630,548.50
  5. Step 5: Solve for x
    x = 3,041,752,864,630,548.50/57,129,731.23
  6. Step 6: Final answer
    x = 53,242,905.21

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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.