Home / 10,780,818.80-16,133,903.40-9,885,023.60

Finding the Fourth Proportional to 10,780,818.80, 16,133,903.40 and 9,885,023.60

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Solution

The fourth proportional to 10,780,818.80, 16,133,903.40 and 9,885,023.60 is: 14,793,311.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,818.80 : 16,133,903.40 = 9,885,023.60 : x
  2. Step 2: Convert to fraction form
    10,780,818.80/16,133,903.40 = 9,885,023.60/x
  3. Step 3: Cross multiply
    10,780,818.80x = 16,133,903.40 × 9,885,023.60
  4. Step 4: Simplify right side
    10,780,818.80x = 159,484,015,869,120.25
  5. Step 5: Solve for x
    x = 159,484,015,869,120.25/10,780,818.80
  6. Step 6: Final answer
    x = 14,793,311.98

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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.