Home / 18,887,969.24-28,328,784.32-5,242,501.88

Finding the Fourth Proportional to 18,887,969.24, 28,328,784.32 and 5,242,501.88

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Solution

The fourth proportional to 18,887,969.24, 28,328,784.32 and 5,242,501.88 is: 7,862,873.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887,969.24 : 28,328,784.32 = 5,242,501.88 : x
  2. Step 2: Convert to fraction form
    18,887,969.24/28,328,784.32 = 5,242,501.88/x
  3. Step 3: Cross multiply
    18,887,969.24x = 28,328,784.32 × 5,242,501.88
  4. Step 4: Simplify right side
    18,887,969.24x = 148,513,705,055,714.53
  5. Step 5: Solve for x
    x = 148,513,705,055,714.53/18,887,969.24
  6. Step 6: Final answer
    x = 7,862,873.09

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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.