Home / 20,727,866.79-28,604,296.31-11,435,828.45

Finding the Fourth Proportional to 20,727,866.79, 28,604,296.31 and 11,435,828.45

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Solution

The fourth proportional to 20,727,866.79, 28,604,296.31 and 11,435,828.45 is: 15,781,355.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727,866.79 : 28,604,296.31 = 11,435,828.45 : x
  2. Step 2: Convert to fraction form
    20,727,866.79/28,604,296.31 = 11,435,828.45/x
  3. Step 3: Cross multiply
    20,727,866.79x = 28,604,296.31 × 11,435,828.45
  4. Step 4: Simplify right side
    20,727,866.79x = 327,113,825,333,927.38
  5. Step 5: Solve for x
    x = 327,113,825,333,927.38/20,727,866.79
  6. Step 6: Final answer
    x = 15,781,355.05

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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.