Home / 19,215,343.80-28,823,015.70-18,386,033.40

Finding the Fourth Proportional to 19,215,343.80, 28,823,015.70 and 18,386,033.40

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Solution

The fourth proportional to 19,215,343.80, 28,823,015.70 and 18,386,033.40 is: 27,579,050.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215,343.80 : 28,823,015.70 = 18,386,033.40 : x
  2. Step 2: Convert to fraction form
    19,215,343.80/28,823,015.70 = 18,386,033.40/x
  3. Step 3: Cross multiply
    19,215,343.80x = 28,823,015.70 × 18,386,033.40
  4. Step 4: Simplify right side
    19,215,343.80x = 529,940,929,348,924.31
  5. Step 5: Solve for x
    x = 529,940,929,348,924.31/19,215,343.80
  6. Step 6: Final answer
    x = 27,579,050.10

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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.