Home / 10,780,905.60-16,171,358.40-7,946,553.60

Finding the Fourth Proportional to 10,780,905.60, 16,171,358.40 and 7,946,553.60

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Solution

The fourth proportional to 10,780,905.60, 16,171,358.40 and 7,946,553.60 is: 11,919,830.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,905.60 : 16,171,358.40 = 7,946,553.60 : x
  2. Step 2: Convert to fraction form
    10,780,905.60/16,171,358.40 = 7,946,553.60/x
  3. Step 3: Cross multiply
    10,780,905.60x = 16,171,358.40 × 7,946,553.60
  4. Step 4: Simplify right side
    10,780,905.60x = 128,506,566,310,410.23
  5. Step 5: Solve for x
    x = 128,506,566,310,410.23/10,780,905.60
  6. Step 6: Final answer
    x = 11,919,830.40

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1.5x scale

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.