Home / 612,361,997.10-918,542,995.65-203,418,147.60

Finding the Fourth Proportional to 612,361,997.10, 918,542,995.65 and 203,418,147.60

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Solution

The fourth proportional to 612,361,997.10, 918,542,995.65 and 203,418,147.60 is: 305,127,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,361,997.10 : 918,542,995.65 = 203,418,147.60 : x
  2. Step 2: Convert to fraction form
    612,361,997.10/918,542,995.65 = 203,418,147.60/x
  3. Step 3: Cross multiply
    612,361,997.10x = 918,542,995.65 × 203,418,147.60
  4. Step 4: Simplify right side
    612,361,997.10x = 186,848,314,666,077,856
  5. Step 5: Solve for x
    x = 186,848,314,666,077,856/612,361,997.10
  6. Step 6: Final answer
    x = 305,127,221.40

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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.