Home / 2,158,045.23-2,978,102.60-1,191,175.77

Finding the Fourth Proportional to 2,158,045.23, 2,978,102.60 and 1,191,175.77

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Solution

The fourth proportional to 2,158,045.23, 2,978,102.60 and 1,191,175.77 is: 1,643,822.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,045.23 : 2,978,102.60 = 1,191,175.77 : x
  2. Step 2: Convert to fraction form
    2,158,045.23/2,978,102.60 = 1,191,175.77/x
  3. Step 3: Cross multiply
    2,158,045.23x = 2,978,102.60 × 1,191,175.77
  4. Step 4: Simplify right side
    2,158,045.23x = 3,547,443,667,372.92
  5. Step 5: Solve for x
    x = 3,547,443,667,372.92/2,158,045.23
  6. Step 6: Final answer
    x = 1,643,822.67

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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.