Home / 8,187,690.60-12,291,644.70-5,155,050.60

Finding the Fourth Proportional to 8,187,690.60, 12,291,644.70 and 5,155,050.60

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Solution

The fourth proportional to 8,187,690.60, 12,291,644.70 and 5,155,050.60 is: 7,738,940.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187,690.60 : 12,291,644.70 = 5,155,050.60 : x
  2. Step 2: Convert to fraction form
    8,187,690.60/12,291,644.70 = 5,155,050.60/x
  3. Step 3: Cross multiply
    8,187,690.60x = 12,291,644.70 × 5,155,050.60
  4. Step 4: Simplify right side
    8,187,690.60x = 63,364,050,385,721.81
  5. Step 5: Solve for x
    x = 63,364,050,385,721.81/8,187,690.60
  6. Step 6: Final answer
    x = 7,738,940.50

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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.