Home / 874,161,857.60-1,311,309,141.60-260,698,203.20

Finding the Fourth Proportional to 874,161,857.60, 1,311,309,141.60 and 260,698,203.20

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Solution

The fourth proportional to 874,161,857.60, 1,311,309,141.60 and 260,698,203.20 is: 391,067,093.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,161,857.60 : 1,311,309,141.60 = 260,698,203.20 : x
  2. Step 2: Convert to fraction form
    874,161,857.60/1,311,309,141.60 = 260,698,203.20/x
  3. Step 3: Cross multiply
    874,161,857.60x = 1,311,309,141.60 × 260,698,203.20
  4. Step 4: Simplify right side
    874,161,857.60x = 341,855,937,054,854,336
  5. Step 5: Solve for x
    x = 341,855,937,054,854,336/874,161,857.60
  6. Step 6: Final answer
    x = 391,067,093.68

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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.