Home / 2,157,808.14-2,977,872.39-1,240,335.18

Finding the Fourth Proportional to 2,157,808.14, 2,977,872.39 and 1,240,335.18

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Solution

The fourth proportional to 2,157,808.14, 2,977,872.39 and 1,240,335.18 is: 1,711,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,808.14 : 2,977,872.39 = 1,240,335.18 : x
  2. Step 2: Convert to fraction form
    2,157,808.14/2,977,872.39 = 1,240,335.18/x
  3. Step 3: Cross multiply
    2,157,808.14x = 2,977,872.39 × 1,240,335.18
  4. Step 4: Simplify right side
    2,157,808.14x = 3,693,559,886,867.68
  5. Step 5: Solve for x
    x = 3,693,559,886,867.68/2,157,808.14
  6. Step 6: Final answer
    x = 1,711,718.40

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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.