Home / 165,890,400.80-248,835,601.20-105,374,458.40

Finding the Fourth Proportional to 165,890,400.80, 248,835,601.20 and 105,374,458.40

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Solution

The fourth proportional to 165,890,400.80, 248,835,601.20 and 105,374,458.40 is: 158,061,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,890,400.80 : 248,835,601.20 = 105,374,458.40 : x
  2. Step 2: Convert to fraction form
    165,890,400.80/248,835,601.20 = 105,374,458.40/x
  3. Step 3: Cross multiply
    165,890,400.80x = 248,835,601.20 × 105,374,458.40
  4. Step 4: Simplify right side
    165,890,400.80x = 26,220,916,707,088,392
  5. Step 5: Solve for x
    x = 26,220,916,707,088,392/165,890,400.80
  6. Step 6: Final answer
    x = 158,061,687.60

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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.