Home / 431,114,741.40-646,672,112.10-124,416,859.80

Finding the Fourth Proportional to 431,114,741.40, 646,672,112.10 and 124,416,859.80

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Solution

The fourth proportional to 431,114,741.40, 646,672,112.10 and 124,416,859.80 is: 186,625,289.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,114,741.40 : 646,672,112.10 = 124,416,859.80 : x
  2. Step 2: Convert to fraction form
    431,114,741.40/646,672,112.10 = 124,416,859.80/x
  3. Step 3: Cross multiply
    431,114,741.40x = 646,672,112.10 × 124,416,859.80
  4. Step 4: Simplify right side
    431,114,741.40x = 80,456,913,507,715,584
  5. Step 5: Solve for x
    x = 80,456,913,507,715,584/431,114,741.40
  6. Step 6: Final answer
    x = 186,625,289.70

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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.