Home / 2,156,281.89-2,975,836.10-1,189,496.67

Finding the Fourth Proportional to 2,156,281.89, 2,975,836.10 and 1,189,496.67

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Solution

The fourth proportional to 2,156,281.89, 2,975,836.10 and 1,189,496.67 is: 1,641,597.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,281.89 : 2,975,836.10 = 1,189,496.67 : x
  2. Step 2: Convert to fraction form
    2,156,281.89/2,975,836.10 = 1,189,496.67/x
  3. Step 3: Cross multiply
    2,156,281.89x = 2,975,836.10 × 1,189,496.67
  4. Step 4: Simplify right side
    2,156,281.89x = 3,539,747,125,468.30
  5. Step 5: Solve for x
    x = 3,539,747,125,468.30/2,156,281.89
  6. Step 6: Final answer
    x = 1,641,597.58

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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.