Home / 57,312,462-79,090,860.80-31,206,917.52

Finding the Fourth Proportional to 57,312,462, 79,090,860.80 and 31,206,917.52

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Solution

The fourth proportional to 57,312,462, 79,090,860.80 and 31,206,917.52 is: 43,065,362.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,312,462 : 79,090,860.80 = 31,206,917.52 : x
  2. Step 2: Convert to fraction form
    57,312,462/79,090,860.80 = 31,206,917.52/x
  3. Step 3: Cross multiply
    57,312,462x = 79,090,860.80 × 31,206,917.52
  4. Step 4: Simplify right side
    57,312,462x = 2,468,181,969,571,401
  5. Step 5: Solve for x
    x = 2,468,181,969,571,401/57,312,462
  6. Step 6: Final answer
    x = 43,065,362.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.