Home / 399,115,655.40-598,897,431.90-169,045,588.20

Finding the Fourth Proportional to 399,115,655.40, 598,897,431.90 and 169,045,588.20

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Solution

The fourth proportional to 399,115,655.40, 598,897,431.90 and 169,045,588.20 is: 253,663,235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,115,655.40 : 598,897,431.90 = 169,045,588.20 : x
  2. Step 2: Convert to fraction form
    399,115,655.40/598,897,431.90 = 169,045,588.20/x
  3. Step 3: Cross multiply
    399,115,655.40x = 598,897,431.90 × 169,045,588.20
  4. Step 4: Simplify right side
    399,115,655.40x = 101,240,968,647,004,928
  5. Step 5: Solve for x
    x = 101,240,968,647,004,928/399,115,655.40
  6. Step 6: Final answer
    x = 253,663,235.90

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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.