Home / 5,390,441.70-8,085,662.55-5,319,582.90

Finding the Fourth Proportional to 5,390,441.70, 8,085,662.55 and 5,319,582.90

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Solution

The fourth proportional to 5,390,441.70, 8,085,662.55 and 5,319,582.90 is: 7,979,374.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390,441.70 : 8,085,662.55 = 5,319,582.90 : x
  2. Step 2: Convert to fraction form
    5,390,441.70/8,085,662.55 = 5,319,582.90/x
  3. Step 3: Cross multiply
    5,390,441.70x = 8,085,662.55 × 5,319,582.90
  4. Step 4: Simplify right side
    5,390,441.70x = 43,012,352,236,150.40
  5. Step 5: Solve for x
    x = 43,012,352,236,150.40/5,390,441.70
  6. Step 6: Final answer
    x = 7,979,374.35

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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.