Home / 2,128,719.90-2,937,183.66-1,354,068.66

Finding the Fourth Proportional to 2,128,719.90, 2,937,183.66 and 1,354,068.66

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Solution

The fourth proportional to 2,128,719.90, 2,937,183.66 and 1,354,068.66 is: 1,868,328.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,719.90 : 2,937,183.66 = 1,354,068.66 : x
  2. Step 2: Convert to fraction form
    2,128,719.90/2,937,183.66 = 1,354,068.66/x
  3. Step 3: Cross multiply
    2,128,719.90x = 2,937,183.66 × 1,354,068.66
  4. Step 4: Simplify right side
    2,128,719.90x = 3,977,148,342,670.10
  5. Step 5: Solve for x
    x = 3,977,148,342,670.10/2,128,719.90
  6. Step 6: Final answer
    x = 1,868,328.63

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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.