Home / 139,968,369.90-210,057,530.85-71,775,960.30

Finding the Fourth Proportional to 139,968,369.90, 210,057,530.85 and 71,775,960.30

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Solution

The fourth proportional to 139,968,369.90, 210,057,530.85 and 71,775,960.30 is: 107,717,772.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,369.90 : 210,057,530.85 = 71,775,960.30 : x
  2. Step 2: Convert to fraction form
    139,968,369.90/210,057,530.85 = 71,775,960.30/x
  3. Step 3: Cross multiply
    139,968,369.90x = 210,057,530.85 × 71,775,960.30
  4. Step 4: Simplify right side
    139,968,369.90x = 15,077,080,995,005,624
  5. Step 5: Solve for x
    x = 15,077,080,995,005,624/139,968,369.90
  6. Step 6: Final answer
    x = 107,717,772.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.