Home / 18,730,638.14-28,095,315.69-7,940,991.02

Finding the Fourth Proportional to 18,730,638.14, 28,095,315.69 and 7,940,991.02

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Solution

The fourth proportional to 18,730,638.14, 28,095,315.69 and 7,940,991.02 is: 11,911,214.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730,638.14 : 28,095,315.69 = 7,940,991.02 : x
  2. Step 2: Convert to fraction form
    18,730,638.14/28,095,315.69 = 7,940,991.02/x
  3. Step 3: Cross multiply
    18,730,638.14x = 28,095,315.69 × 7,940,991.02
  4. Step 4: Simplify right side
    18,730,638.14x = 223,104,649,598,355.09
  5. Step 5: Solve for x
    x = 223,104,649,598,355.09/18,730,638.14
  6. Step 6: Final answer
    x = 11,911,214.55

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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.