Home / 13,125,619.20-19,688,428.80-8,060,505.60

Finding the Fourth Proportional to 13,125,619.20, 19,688,428.80 and 8,060,505.60

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Solution

The fourth proportional to 13,125,619.20, 19,688,428.80 and 8,060,505.60 is: 12,090,758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125,619.20 : 19,688,428.80 = 8,060,505.60 : x
  2. Step 2: Convert to fraction form
    13,125,619.20/19,688,428.80 = 8,060,505.60/x
  3. Step 3: Cross multiply
    13,125,619.20x = 19,688,428.80 × 8,060,505.60
  4. Step 4: Simplify right side
    13,125,619.20x = 158,698,690,597,601.28
  5. Step 5: Solve for x
    x = 158,698,690,597,601.28/13,125,619.20
  6. Step 6: Final answer
    x = 12,090,758.40

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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.