Home / 13,205,626.40-18,222,080.82-7,697,623.16

Finding the Fourth Proportional to 13,205,626.40, 18,222,080.82 and 7,697,623.16

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Solution

The fourth proportional to 13,205,626.40, 18,222,080.82 and 7,697,623.16 is: 10,621,738.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205,626.40 : 18,222,080.82 = 7,697,623.16 : x
  2. Step 2: Convert to fraction form
    13,205,626.40/18,222,080.82 = 7,697,623.16/x
  3. Step 3: Cross multiply
    13,205,626.40x = 18,222,080.82 × 7,697,623.16
  4. Step 4: Simplify right side
    13,205,626.40x = 140,266,711,343,423.80
  5. Step 5: Solve for x
    x = 140,266,711,343,423.80/13,205,626.40
  6. Step 6: Final answer
    x = 10,621,738.58

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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.