Home / 403,749,124.60-605,623,686.90-131,147,447.80

Finding the Fourth Proportional to 403,749,124.60, 605,623,686.90 and 131,147,447.80

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Solution

The fourth proportional to 403,749,124.60, 605,623,686.90 and 131,147,447.80 is: 196,721,171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,749,124.60 : 605,623,686.90 = 131,147,447.80 : x
  2. Step 2: Convert to fraction form
    403,749,124.60/605,623,686.90 = 131,147,447.80/x
  3. Step 3: Cross multiply
    403,749,124.60x = 605,623,686.90 × 131,147,447.80
  4. Step 4: Simplify right side
    403,749,124.60x = 79,426,000,864,161,296
  5. Step 5: Solve for x
    x = 79,426,000,864,161,296/403,749,124.60
  6. Step 6: Final answer
    x = 196,721,171.70

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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.