Home / 13,564,408.47-18,714,254.13-8,405,887.83

Finding the Fourth Proportional to 13,564,408.47, 18,714,254.13 and 8,405,887.83

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Solution

The fourth proportional to 13,564,408.47, 18,714,254.13 and 8,405,887.83 is: 11,597,256.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564,408.47 : 18,714,254.13 = 8,405,887.83 : x
  2. Step 2: Convert to fraction form
    13,564,408.47/18,714,254.13 = 8,405,887.83/x
  3. Step 3: Cross multiply
    13,564,408.47x = 18,714,254.13 × 8,405,887.83
  4. Step 4: Simplify right side
    13,564,408.47x = 157,309,921,038,894.22
  5. Step 5: Solve for x
    x = 157,309,921,038,894.22/13,564,408.47
  6. Step 6: Final answer
    x = 11,597,256.26

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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.