Home / 499,424,857.20-749,137,285.80-130,959,097.20

Finding the Fourth Proportional to 499,424,857.20, 749,137,285.80 and 130,959,097.20

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Solution

The fourth proportional to 499,424,857.20, 749,137,285.80 and 130,959,097.20 is: 196,438,645.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,424,857.20 : 749,137,285.80 = 130,959,097.20 : x
  2. Step 2: Convert to fraction form
    499,424,857.20/749,137,285.80 = 130,959,097.20/x
  3. Step 3: Cross multiply
    499,424,857.20x = 749,137,285.80 × 130,959,097.20
  4. Step 4: Simplify right side
    499,424,857.20x = 98,106,342,627,226,368
  5. Step 5: Solve for x
    x = 98,106,342,627,226,368/499,424,857.20
  6. Step 6: Final answer
    x = 196,438,645.80

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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.