Home / 13,205,618.34-18,222,069.74-7,697,615.10

Finding the Fourth Proportional to 13,205,618.34, 18,222,069.74 and 7,697,615.10

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Solution

The fourth proportional to 13,205,618.34, 18,222,069.74 and 7,697,615.10 is: 10,621,727.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205,618.34 : 18,222,069.74 = 7,697,615.10 : x
  2. Step 2: Convert to fraction form
    13,205,618.34/18,222,069.74 = 7,697,615.10/x
  3. Step 3: Cross multiply
    13,205,618.34x = 18,222,069.74 × 7,697,615.10
  4. Step 4: Simplify right side
    13,205,618.34x = 140,266,479,183,877.05
  5. Step 5: Solve for x
    x = 140,266,479,183,877.05/13,205,618.34
  6. Step 6: Final answer
    x = 10,621,727.48

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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.