Home / 28,120,003.80-42,180,005.70-8,952,698.40

Finding the Fourth Proportional to 28,120,003.80, 42,180,005.70 and 8,952,698.40

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Solution

The fourth proportional to 28,120,003.80, 42,180,005.70 and 8,952,698.40 is: 13,429,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,120,003.80 : 42,180,005.70 = 8,952,698.40 : x
  2. Step 2: Convert to fraction form
    28,120,003.80/42,180,005.70 = 8,952,698.40/x
  3. Step 3: Cross multiply
    28,120,003.80x = 42,180,005.70 × 8,952,698.40
  4. Step 4: Simplify right side
    28,120,003.80x = 377,624,869,542,380.94
  5. Step 5: Solve for x
    x = 377,624,869,542,380.94/28,120,003.80
  6. Step 6: Final answer
    x = 13,429,047.60

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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.