Home / 11,176,477.20-16,764,715.80-10,515,128.40

Finding the Fourth Proportional to 11,176,477.20, 16,764,715.80 and 10,515,128.40

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Solution

The fourth proportional to 11,176,477.20, 16,764,715.80 and 10,515,128.40 is: 15,772,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,176,477.20 : 16,764,715.80 = 10,515,128.40 : x
  2. Step 2: Convert to fraction form
    11,176,477.20/16,764,715.80 = 10,515,128.40/x
  3. Step 3: Cross multiply
    11,176,477.20x = 16,764,715.80 × 10,515,128.40
  4. Step 4: Simplify right side
    11,176,477.20x = 176,283,139,226,508.72
  5. Step 5: Solve for x
    x = 176,283,139,226,508.72/11,176,477.20
  6. Step 6: Final answer
    x = 15,772,692.60

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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.