Home / 13,607,728.40-20,401,330.10-8,215,097.72

Finding the Fourth Proportional to 13,607,728.40, 20,401,330.10 and 8,215,097.72

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Solution

The fourth proportional to 13,607,728.40, 20,401,330.10 and 8,215,097.72 is: 12,316,451.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,607,728.40 : 20,401,330.10 = 8,215,097.72 : x
  2. Step 2: Convert to fraction form
    13,607,728.40/20,401,330.10 = 8,215,097.72/x
  3. Step 3: Cross multiply
    13,607,728.40x = 20,401,330.10 × 8,215,097.72
  4. Step 4: Simplify right side
    13,607,728.40x = 167,598,920,246,395.22
  5. Step 5: Solve for x
    x = 167,598,920,246,395.22/13,607,728.40
  6. Step 6: Final answer
    x = 12,316,451.02

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1.5x scale

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.