Home / 7,117,999.20-10,652,115.60-6,520,802.40

Finding the Fourth Proportional to 7,117,999.20, 10,652,115.60 and 6,520,802.40

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Solution

The fourth proportional to 7,117,999.20, 10,652,115.60 and 6,520,802.40 is: 9,758,408.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117,999.20 : 10,652,115.60 = 6,520,802.40 : x
  2. Step 2: Convert to fraction form
    7,117,999.20/10,652,115.60 = 6,520,802.40/x
  3. Step 3: Cross multiply
    7,117,999.20x = 10,652,115.60 × 6,520,802.40
  4. Step 4: Simplify right side
    7,117,999.20x = 69,460,340,969,557.45
  5. Step 5: Solve for x
    x = 69,460,340,969,557.45/7,117,999.20
  6. Step 6: Final answer
    x = 9,758,408.09

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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.