Home / 15,420,942.52-21,280,365.30-8,546,064.28

Finding the Fourth Proportional to 15,420,942.52, 21,280,365.30 and 8,546,064.28

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Solution

The fourth proportional to 15,420,942.52, 21,280,365.30 and 8,546,064.28 is: 11,793,272.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420,942.52 : 21,280,365.30 = 8,546,064.28 : x
  2. Step 2: Convert to fraction form
    15,420,942.52/21,280,365.30 = 8,546,064.28/x
  3. Step 3: Cross multiply
    15,420,942.52x = 21,280,365.30 × 8,546,064.28
  4. Step 4: Simplify right side
    15,420,942.52x = 181,863,369,755,681.47
  5. Step 5: Solve for x
    x = 181,863,369,755,681.47/15,420,942.52
  6. Step 6: Final answer
    x = 11,793,272.01

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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.