Home / 5,430,986.40-8,137,148.40-2,868,405.60

Finding the Fourth Proportional to 5,430,986.40, 8,137,148.40 and 2,868,405.60

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Solution

The fourth proportional to 5,430,986.40, 8,137,148.40 and 2,868,405.60 is: 4,297,680.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430,986.40 : 8,137,148.40 = 2,868,405.60 : x
  2. Step 2: Convert to fraction form
    5,430,986.40/8,137,148.40 = 2,868,405.60/x
  3. Step 3: Cross multiply
    5,430,986.40x = 8,137,148.40 × 2,868,405.60
  4. Step 4: Simplify right side
    5,430,986.40x = 23,340,642,038,591.04
  5. Step 5: Solve for x
    x = 23,340,642,038,591.04/5,430,986.40
  6. Step 6: Final answer
    x = 4,297,680.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.