Home / 165,921,382.40-248,882,073.60-105,140,019.20

Finding the Fourth Proportional to 165,921,382.40, 248,882,073.60 and 105,140,019.20

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Solution

The fourth proportional to 165,921,382.40, 248,882,073.60 and 105,140,019.20 is: 157,710,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,921,382.40 : 248,882,073.60 = 105,140,019.20 : x
  2. Step 2: Convert to fraction form
    165,921,382.40/248,882,073.60 = 105,140,019.20/x
  3. Step 3: Cross multiply
    165,921,382.40x = 248,882,073.60 × 105,140,019.20
  4. Step 4: Simplify right side
    165,921,382.40x = 26,167,465,996,839,812
  5. Step 5: Solve for x
    x = 26,167,465,996,839,812/165,921,382.40
  6. Step 6: Final answer
    x = 157,710,028.80

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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.