Home / 240,370,538.40-360,933,721.20-138,333,866.40

Finding the Fourth Proportional to 240,370,538.40, 360,933,721.20 and 138,333,866.40

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Solution

The fourth proportional to 240,370,538.40, 360,933,721.20 and 138,333,866.40 is: 207,718,289.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,370,538.40 : 360,933,721.20 = 138,333,866.40 : x
  2. Step 2: Convert to fraction form
    240,370,538.40/360,933,721.20 = 138,333,866.40/x
  3. Step 3: Cross multiply
    240,370,538.40x = 360,933,721.20 × 138,333,866.40
  4. Step 4: Simplify right side
    240,370,538.40x = 49,929,357,167,735,648
  5. Step 5: Solve for x
    x = 49,929,357,167,735,648/240,370,538.40
  6. Step 6: Final answer
    x = 207,718,289.85

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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.