Home / 81,007,346.88-121,461,814.04-31,764,206.07

Finding the Fourth Proportional to 81,007,346.88, 121,461,814.04 and 31,764,206.07

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Solution

The fourth proportional to 81,007,346.88, 121,461,814.04 and 31,764,206.07 is: 47,627,014.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,007,346.88 : 121,461,814.04 = 31,764,206.07 : x
  2. Step 2: Convert to fraction form
    81,007,346.88/121,461,814.04 = 31,764,206.07/x
  3. Step 3: Cross multiply
    81,007,346.88x = 121,461,814.04 × 31,764,206.07
  4. Step 4: Simplify right side
    81,007,346.88x = 3,858,138,090,643,758
  5. Step 5: Solve for x
    x = 3,858,138,090,643,758/81,007,346.88
  6. Step 6: Final answer
    x = 47,627,014.58

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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.