Home / 18,380,015.80-27,578,881.05-12,977,032.30

Finding the Fourth Proportional to 18,380,015.80, 27,578,881.05 and 12,977,032.30

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Solution

The fourth proportional to 18,380,015.80, 27,578,881.05 and 12,977,032.30 is: 19,471,802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,380,015.80 : 27,578,881.05 = 12,977,032.30 : x
  2. Step 2: Convert to fraction form
    18,380,015.80/27,578,881.05 = 12,977,032.30/x
  3. Step 3: Cross multiply
    18,380,015.80x = 27,578,881.05 × 12,977,032.30
  4. Step 4: Simplify right side
    18,380,015.80x = 357,892,030,183,707.94
  5. Step 5: Solve for x
    x = 357,892,030,183,707.94/18,380,015.80
  6. Step 6: Final answer
    x = 19,471,802.10

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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.