Home / 10,290,378.12-14,200,742.10-5,644,200.96

Finding the Fourth Proportional to 10,290,378.12, 14,200,742.10 and 5,644,200.96

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Solution

The fourth proportional to 10,290,378.12, 14,200,742.10 and 5,644,200.96 is: 7,789,008.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290,378.12 : 14,200,742.10 = 5,644,200.96 : x
  2. Step 2: Convert to fraction form
    10,290,378.12/14,200,742.10 = 5,644,200.96/x
  3. Step 3: Cross multiply
    10,290,378.12x = 14,200,742.10 × 5,644,200.96
  4. Step 4: Simplify right side
    10,290,378.12x = 80,151,842,193,532.41
  5. Step 5: Solve for x
    x = 80,151,842,193,532.41/10,290,378.12
  6. Step 6: Final answer
    x = 7,789,008.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.