Home / 18,590,428.80-27,885,643.20-17,385,829.20

Finding the Fourth Proportional to 18,590,428.80, 27,885,643.20 and 17,385,829.20

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Solution

The fourth proportional to 18,590,428.80, 27,885,643.20 and 17,385,829.20 is: 26,078,743.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590,428.80 : 27,885,643.20 = 17,385,829.20 : x
  2. Step 2: Convert to fraction form
    18,590,428.80/27,885,643.20 = 17,385,829.20/x
  3. Step 3: Cross multiply
    18,590,428.80x = 27,885,643.20 × 17,385,829.20
  4. Step 4: Simplify right side
    18,590,428.80x = 484,815,029,807,341.44
  5. Step 5: Solve for x
    x = 484,815,029,807,341.44/18,590,428.80
  6. Step 6: Final answer
    x = 26,078,743.80

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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.