Home / 19,018,678.60-26,237,411.50-12,821,461.44

Finding the Fourth Proportional to 19,018,678.60, 26,237,411.50 and 12,821,461.44

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Solution

The fourth proportional to 19,018,678.60, 26,237,411.50 and 12,821,461.44 is: 17,687,977.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018,678.60 : 26,237,411.50 = 12,821,461.44 : x
  2. Step 2: Convert to fraction form
    19,018,678.60/26,237,411.50 = 12,821,461.44/x
  3. Step 3: Cross multiply
    19,018,678.60x = 26,237,411.50 × 12,821,461.44
  4. Step 4: Simplify right side
    19,018,678.60x = 336,401,959,832,662.56
  5. Step 5: Solve for x
    x = 336,401,959,832,662.56/19,018,678.60
  6. Step 6: Final answer
    x = 17,687,977.54

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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.