Home / 3,179,689.60-4,389,112.98-1,890,526.90

Finding the Fourth Proportional to 3,179,689.60, 4,389,112.98 and 1,890,526.90

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Solution

The fourth proportional to 3,179,689.60, 4,389,112.98 and 1,890,526.90 is: 2,609,605.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,689.60 : 4,389,112.98 = 1,890,526.90 : x
  2. Step 2: Convert to fraction form
    3,179,689.60/4,389,112.98 = 1,890,526.90/x
  3. Step 3: Cross multiply
    3,179,689.60x = 4,389,112.98 × 1,890,526.90
  4. Step 4: Simplify right side
    3,179,689.60x = 8,297,736,155,829.16
  5. Step 5: Solve for x
    x = 8,297,736,155,829.16/3,179,689.60
  6. Step 6: Final answer
    x = 2,609,605.72

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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.