Home / 403,749,135.10-605,623,702.65-131,147,458.30

Finding the Fourth Proportional to 403,749,135.10, 605,623,702.65 and 131,147,458.30

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Solution

The fourth proportional to 403,749,135.10, 605,623,702.65 and 131,147,458.30 is: 196,721,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,749,135.10 : 605,623,702.65 = 131,147,458.30 : x
  2. Step 2: Convert to fraction form
    403,749,135.10/605,623,702.65 = 131,147,458.30/x
  3. Step 3: Cross multiply
    403,749,135.10x = 605,623,702.65 × 131,147,458.30
  4. Step 4: Simplify right side
    403,749,135.10x = 79,426,009,288,782,464
  5. Step 5: Solve for x
    x = 79,426,009,288,782,464/403,749,135.10
  6. Step 6: Final answer
    x = 196,721,187.45

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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.