Home / 136,609,632.11-188,521,540.34-74,729,970.69

Finding the Fourth Proportional to 136,609,632.11, 188,521,540.34 and 74,729,970.69

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Solution

The fourth proportional to 136,609,632.11, 188,521,540.34 and 74,729,970.69 is: 103,127,495.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,609,632.11 : 188,521,540.34 = 74,729,970.69 : x
  2. Step 2: Convert to fraction form
    136,609,632.11/188,521,540.34 = 74,729,970.69/x
  3. Step 3: Cross multiply
    136,609,632.11x = 188,521,540.34 × 74,729,970.69
  4. Step 4: Simplify right side
    136,609,632.11x = 14,088,209,183,668,202
  5. Step 5: Solve for x
    x = 14,088,209,183,668,202/136,609,632.11
  6. Step 6: Final answer
    x = 103,127,495.23

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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.