Home / 15,255,254.24-21,047,111.52-8,638,936.64

Finding the Fourth Proportional to 15,255,254.24, 21,047,111.52 and 8,638,936.64

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Solution

The fourth proportional to 15,255,254.24, 21,047,111.52 and 8,638,936.64 is: 11,918,822.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,255,254.24 : 21,047,111.52 = 8,638,936.64 : x
  2. Step 2: Convert to fraction form
    15,255,254.24/21,047,111.52 = 8,638,936.64/x
  3. Step 3: Cross multiply
    15,255,254.24x = 21,047,111.52 × 8,638,936.64
  4. Step 4: Simplify right side
    15,255,254.24x = 181,824,662,876,294.09
  5. Step 5: Solve for x
    x = 181,824,662,876,294.09/15,255,254.24
  6. Step 6: Final answer
    x = 11,918,822.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.