Home / 10,780,970.40-16,171,455.60-5,112,266.40

Finding the Fourth Proportional to 10,780,970.40, 16,171,455.60 and 5,112,266.40

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Solution

The fourth proportional to 10,780,970.40, 16,171,455.60 and 5,112,266.40 is: 7,668,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,970.40 : 16,171,455.60 = 5,112,266.40 : x
  2. Step 2: Convert to fraction form
    10,780,970.40/16,171,455.60 = 5,112,266.40/x
  3. Step 3: Cross multiply
    10,780,970.40x = 16,171,455.60 × 5,112,266.40
  4. Step 4: Simplify right side
    10,780,970.40x = 82,672,789,102,971.84
  5. Step 5: Solve for x
    x = 82,672,789,102,971.84/10,780,970.40
  6. Step 6: Final answer
    x = 7,668,399.60

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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.