Home / 8,918,401.45-12,307,184.67-5,247,555.78

Finding the Fourth Proportional to 8,918,401.45, 12,307,184.67 and 5,247,555.78

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Solution

The fourth proportional to 8,918,401.45, 12,307,184.67 and 5,247,555.78 is: 7,241,503.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918,401.45 : 12,307,184.67 = 5,247,555.78 : x
  2. Step 2: Convert to fraction form
    8,918,401.45/12,307,184.67 = 5,247,555.78/x
  3. Step 3: Cross multiply
    8,918,401.45x = 12,307,184.67 × 5,247,555.78
  4. Step 4: Simplify right side
    8,918,401.45x = 64,582,638,014,273.12
  5. Step 5: Solve for x
    x = 64,582,638,014,273.12/8,918,401.45
  6. Step 6: Final answer
    x = 7,241,503.81

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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.