Home / 18,684,666.60-28,026,999.90-15,661,357.80

Finding the Fourth Proportional to 18,684,666.60, 28,026,999.90 and 15,661,357.80

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Solution

The fourth proportional to 18,684,666.60, 28,026,999.90 and 15,661,357.80 is: 23,492,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684,666.60 : 28,026,999.90 = 15,661,357.80 : x
  2. Step 2: Convert to fraction form
    18,684,666.60/28,026,999.90 = 15,661,357.80/x
  3. Step 3: Cross multiply
    18,684,666.60x = 28,026,999.90 × 15,661,357.80
  4. Step 4: Simplify right side
    18,684,666.60x = 438,940,873,494,464.19
  5. Step 5: Solve for x
    x = 438,940,873,494,464.19/18,684,666.60
  6. Step 6: Final answer
    x = 23,492,036.70

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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.