Home / 12,487,459.20-18,721,857.60-6,814,089.60

Finding the Fourth Proportional to 12,487,459.20, 18,721,857.60 and 6,814,089.60

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Solution

The fourth proportional to 12,487,459.20, 18,721,857.60 and 6,814,089.60 is: 10,216,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487,459.20 : 18,721,857.60 = 6,814,089.60 : x
  2. Step 2: Convert to fraction form
    12,487,459.20/18,721,857.60 = 6,814,089.60/x
  3. Step 3: Cross multiply
    12,487,459.20x = 18,721,857.60 × 6,814,089.60
  4. Step 4: Simplify right side
    12,487,459.20x = 127,572,415,164,840.97
  5. Step 5: Solve for x
    x = 127,572,415,164,840.97/12,487,459.20
  6. Step 6: Final answer
    x = 10,216,042.60

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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.