Home / 490,031,029.80-734,833,968.30-162,379,938.60

Finding the Fourth Proportional to 490,031,029.80, 734,833,968.30 and 162,379,938.60

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Solution

The fourth proportional to 490,031,029.80, 734,833,968.30 and 162,379,938.60 is: 243,499,467.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,031,029.80 : 734,833,968.30 = 162,379,938.60 : x
  2. Step 2: Convert to fraction form
    490,031,029.80/734,833,968.30 = 162,379,938.60/x
  3. Step 3: Cross multiply
    490,031,029.80x = 734,833,968.30 × 162,379,938.60
  4. Step 4: Simplify right side
    490,031,029.80x = 119,322,294,653,748,336
  5. Step 5: Solve for x
    x = 119,322,294,653,748,336/490,031,029.80
  6. Step 6: Final answer
    x = 243,499,467.17

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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.