Home / 10,780,977.60-16,171,466.40-7,946,625.60

Finding the Fourth Proportional to 10,780,977.60, 16,171,466.40 and 7,946,625.60

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Solution

The fourth proportional to 10,780,977.60, 16,171,466.40 and 7,946,625.60 is: 11,919,938.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,977.60 : 16,171,466.40 = 7,946,625.60 : x
  2. Step 2: Convert to fraction form
    10,780,977.60/16,171,466.40 = 7,946,625.60/x
  3. Step 3: Cross multiply
    10,780,977.60x = 16,171,466.40 × 7,946,625.60
  4. Step 4: Simplify right side
    10,780,977.60x = 128,508,588,883,779.84
  5. Step 5: Solve for x
    x = 128,508,588,883,779.84/10,780,977.60
  6. Step 6: Final answer
    x = 11,919,938.40

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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.