Home / 8,239,254.40-12,358,881.60-5,215,945.60

Finding the Fourth Proportional to 8,239,254.40, 12,358,881.60 and 5,215,945.60

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Solution

The fourth proportional to 8,239,254.40, 12,358,881.60 and 5,215,945.60 is: 7,823,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239,254.40 : 12,358,881.60 = 5,215,945.60 : x
  2. Step 2: Convert to fraction form
    8,239,254.40/12,358,881.60 = 5,215,945.60/x
  3. Step 3: Cross multiply
    8,239,254.40x = 12,358,881.60 × 5,215,945.60
  4. Step 4: Simplify right side
    8,239,254.40x = 64,463,254,102,440.95
  5. Step 5: Solve for x
    x = 64,463,254,102,440.95/8,239,254.40
  6. Step 6: Final answer
    x = 7,823,918.40

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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.