Home / 18,712,457.97-28,068,670.55-7,043,009.60

Finding the Fourth Proportional to 18,712,457.97, 28,068,670.55 and 7,043,009.60

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Solution

The fourth proportional to 18,712,457.97, 28,068,670.55 and 7,043,009.60 is: 10,564,508.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712,457.97 : 28,068,670.55 = 7,043,009.60 : x
  2. Step 2: Convert to fraction form
    18,712,457.97/28,068,670.55 = 7,043,009.60/x
  3. Step 3: Cross multiply
    18,712,457.97x = 28,068,670.55 × 7,043,009.60
  4. Step 4: Simplify right side
    18,712,457.97x = 197,687,915,967,328.88
  5. Step 5: Solve for x
    x = 197,687,915,967,328.88/18,712,457.97
  6. Step 6: Final answer
    x = 10,564,508.22

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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.