Home / 152,042,839.13-209,992,328.42-103,065,236.57

Finding the Fourth Proportional to 152,042,839.13, 209,992,328.42 and 103,065,236.57

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Solution

The fourth proportional to 152,042,839.13, 209,992,328.42 and 103,065,236.57 is: 142,347,440.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,042,839.13 : 209,992,328.42 = 103,065,236.57 : x
  2. Step 2: Convert to fraction form
    152,042,839.13/209,992,328.42 = 103,065,236.57/x
  3. Step 3: Cross multiply
    152,042,839.13x = 209,992,328.42 × 103,065,236.57
  4. Step 4: Simplify right side
    152,042,839.13x = 21,642,909,004,927,144
  5. Step 5: Solve for x
    x = 21,642,909,004,927,144/152,042,839.13
  6. Step 6: Final answer
    x = 142,347,440.56

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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.