Home / 8,169,638.40-12,254,457.60-7,665,753.60

Finding the Fourth Proportional to 8,169,638.40, 12,254,457.60 and 7,665,753.60

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Solution

The fourth proportional to 8,169,638.40, 12,254,457.60 and 7,665,753.60 is: 11,498,630.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169,638.40 : 12,254,457.60 = 7,665,753.60 : x
  2. Step 2: Convert to fraction form
    8,169,638.40/12,254,457.60 = 7,665,753.60/x
  3. Step 3: Cross multiply
    8,169,638.40x = 12,254,457.60 × 7,665,753.60
  4. Step 4: Simplify right side
    8,169,638.40x = 93,939,652,463,247.36
  5. Step 5: Solve for x
    x = 93,939,652,463,247.36/8,169,638.40
  6. Step 6: Final answer
    x = 11,498,630.40

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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.