Home / 403,749,145.60-605,623,718.40-131,147,468.80

Finding the Fourth Proportional to 403,749,145.60, 605,623,718.40 and 131,147,468.80

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Solution

The fourth proportional to 403,749,145.60, 605,623,718.40 and 131,147,468.80 is: 196,721,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,749,145.60 : 605,623,718.40 = 131,147,468.80 : x
  2. Step 2: Convert to fraction form
    403,749,145.60/605,623,718.40 = 131,147,468.80/x
  3. Step 3: Cross multiply
    403,749,145.60x = 605,623,718.40 × 131,147,468.80
  4. Step 4: Simplify right side
    403,749,145.60x = 79,426,017,713,403,984
  5. Step 5: Solve for x
    x = 79,426,017,713,403,984/403,749,145.60
  6. Step 6: Final answer
    x = 196,721,203.20

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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.