Home / 5,185,834.60-7,778,751.90-1,399,311.40

Finding the Fourth Proportional to 5,185,834.60, 7,778,751.90 and 1,399,311.40

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Solution

The fourth proportional to 5,185,834.60, 7,778,751.90 and 1,399,311.40 is: 2,098,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185,834.60 : 7,778,751.90 = 1,399,311.40 : x
  2. Step 2: Convert to fraction form
    5,185,834.60/7,778,751.90 = 1,399,311.40/x
  3. Step 3: Cross multiply
    5,185,834.60x = 7,778,751.90 × 1,399,311.40
  4. Step 4: Simplify right side
    5,185,834.60x = 10,884,896,211,441.66
  5. Step 5: Solve for x
    x = 10,884,896,211,441.66/5,185,834.60
  6. Step 6: Final answer
    x = 2,098,967.10

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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.