Home / 19,018,677.90-26,237,410.56-12,821,460.76

Finding the Fourth Proportional to 19,018,677.90, 26,237,410.56 and 12,821,460.76

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Solution

The fourth proportional to 19,018,677.90, 26,237,410.56 and 12,821,460.76 is: 17,687,976.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018,677.90 : 26,237,410.56 = 12,821,460.76 : x
  2. Step 2: Convert to fraction form
    19,018,677.90/26,237,410.56 = 12,821,460.76/x
  3. Step 3: Cross multiply
    19,018,677.90x = 26,237,410.56 × 12,821,460.76
  4. Step 4: Simplify right side
    19,018,677.90x = 336,401,929,939,049.62
  5. Step 5: Solve for x
    x = 336,401,929,939,049.62/19,018,677.90
  6. Step 6: Final answer
    x = 17,687,976.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.