Home / 152,042,823.38-209,992,306.67-103,065,220.82

Finding the Fourth Proportional to 152,042,823.38, 209,992,306.67 and 103,065,220.82

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Solution

The fourth proportional to 152,042,823.38, 209,992,306.67 and 103,065,220.82 is: 142,347,418.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,042,823.38 : 209,992,306.67 = 103,065,220.82 : x
  2. Step 2: Convert to fraction form
    152,042,823.38/209,992,306.67 = 103,065,220.82/x
  3. Step 3: Cross multiply
    152,042,823.38x = 209,992,306.67 × 103,065,220.82
  4. Step 4: Simplify right side
    152,042,823.38x = 21,642,903,455,879,420
  5. Step 5: Solve for x
    x = 21,642,903,455,879,420/152,042,823.38
  6. Step 6: Final answer
    x = 142,347,418.81

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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.