Home / 152,042,721.76-209,992,166.06-103,065,119.20

Finding the Fourth Proportional to 152,042,721.76, 209,992,166.06 and 103,065,119.20

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Solution

The fourth proportional to 152,042,721.76, 209,992,166.06 and 103,065,119.20 is: 142,347,278.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,042,721.76 : 209,992,166.06 = 103,065,119.20 : x
  2. Step 2: Convert to fraction form
    152,042,721.76/209,992,166.06 = 103,065,119.20/x
  3. Step 3: Cross multiply
    152,042,721.76x = 209,992,166.06 × 103,065,119.20
  4. Step 4: Simplify right side
    152,042,721.76x = 21,642,867,626,040,096
  5. Step 5: Solve for x
    x = 21,642,867,626,040,096/152,042,721.76
  6. Step 6: Final answer
    x = 142,347,278.29

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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.