Home / 412,296,569.51-618,739,914.72-149,980,613.42

Finding the Fourth Proportional to 412,296,569.51, 618,739,914.72 and 149,980,613.42

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Solution

The fourth proportional to 412,296,569.51, 618,739,914.72 and 149,980,613.42 is: 225,078,253.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,296,569.51 : 618,739,914.72 = 149,980,613.42 : x
  2. Step 2: Convert to fraction form
    412,296,569.51/618,739,914.72 = 149,980,613.42/x
  3. Step 3: Cross multiply
    412,296,569.51x = 618,739,914.72 × 149,980,613.42
  4. Step 4: Simplify right side
    412,296,569.51x = 92,798,991,957,144,080
  5. Step 5: Solve for x
    x = 92,798,991,957,144,080/412,296,569.51
  6. Step 6: Final answer
    x = 225,078,253.91

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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.