Home / 20,886,276.80-31,362,207.45-17,689,722.06

Finding the Fourth Proportional to 20,886,276.80, 31,362,207.45 and 17,689,722.06

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Solution

The fourth proportional to 20,886,276.80, 31,362,207.45 and 17,689,722.06 is: 26,562,356.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886,276.80 : 31,362,207.45 = 17,689,722.06 : x
  2. Step 2: Convert to fraction form
    20,886,276.80/31,362,207.45 = 17,689,722.06/x
  3. Step 3: Cross multiply
    20,886,276.80x = 31,362,207.45 × 17,689,722.06
  4. Step 4: Simplify right side
    20,886,276.80x = 554,788,733,029,833.12
  5. Step 5: Solve for x
    x = 554,788,733,029,833.12/20,886,276.80
  6. Step 6: Final answer
    x = 26,562,356.63

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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.