Home / 2,171,816-2,997,186.14-1,312,210.12

Finding the Fourth Proportional to 2,171,816, 2,997,186.14 and 1,312,210.12

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Solution

The fourth proportional to 2,171,816, 2,997,186.14 and 1,312,210.12 is: 1,810,898.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171,816 : 2,997,186.14 = 1,312,210.12 : x
  2. Step 2: Convert to fraction form
    2,171,816/2,997,186.14 = 1,312,210.12/x
  3. Step 3: Cross multiply
    2,171,816x = 2,997,186.14 × 1,312,210.12
  4. Step 4: Simplify right side
    2,171,816x = 3,932,937,984,431.74
  5. Step 5: Solve for x
    x = 3,932,937,984,431.74/2,171,816
  6. Step 6: Final answer
    x = 1,810,898.34

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Double scale
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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.