Home / 8,430,521.60-12,608,457.60-7,086,828.80

Finding the Fourth Proportional to 8,430,521.60, 12,608,457.60 and 7,086,828.80

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Solution

The fourth proportional to 8,430,521.60, 12,608,457.60 and 7,086,828.80 is: 10,598,867.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430,521.60 : 12,608,457.60 = 7,086,828.80 : x
  2. Step 2: Convert to fraction form
    8,430,521.60/12,608,457.60 = 7,086,828.80/x
  3. Step 3: Cross multiply
    8,430,521.60x = 12,608,457.60 × 7,086,828.80
  4. Step 4: Simplify right side
    8,430,521.60x = 89,353,980,443,258.88
  5. Step 5: Solve for x
    x = 89,353,980,443,258.88/8,430,521.60
  6. Step 6: Final answer
    x = 10,598,867.39

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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.