Home / 28,370,807.60-42,543,769.80-11,325,815.60

Finding the Fourth Proportional to 28,370,807.60, 42,543,769.80 and 11,325,815.60

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Solution

The fourth proportional to 28,370,807.60, 42,543,769.80 and 11,325,815.60 is: 16,983,756.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370,807.60 : 42,543,769.80 = 11,325,815.60 : x
  2. Step 2: Convert to fraction form
    28,370,807.60/42,543,769.80 = 11,325,815.60/x
  3. Step 3: Cross multiply
    28,370,807.60x = 42,543,769.80 × 11,325,815.60
  4. Step 4: Simplify right side
    28,370,807.60x = 481,842,891,683,648.81
  5. Step 5: Solve for x
    x = 481,842,891,683,648.81/28,370,807.60
  6. Step 6: Final answer
    x = 16,983,756.63

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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.