Home / 10,557,457.80-15,836,186.70-8,289,976.20

Finding the Fourth Proportional to 10,557,457.80, 15,836,186.70 and 8,289,976.20

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Solution

The fourth proportional to 10,557,457.80, 15,836,186.70 and 8,289,976.20 is: 12,434,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,557,457.80 : 15,836,186.70 = 8,289,976.20 : x
  2. Step 2: Convert to fraction form
    10,557,457.80/15,836,186.70 = 8,289,976.20/x
  3. Step 3: Cross multiply
    10,557,457.80x = 15,836,186.70 × 8,289,976.20
  4. Step 4: Simplify right side
    10,557,457.80x = 131,281,610,841,756.53
  5. Step 5: Solve for x
    x = 131,281,610,841,756.53/10,557,457.80
  6. Step 6: Final answer
    x = 12,434,964.30

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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.