Home / 388,622,065.86-582,847,111.35-112,213,281.60

Finding the Fourth Proportional to 388,622,065.86, 582,847,111.35 and 112,213,281.60

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Solution

The fourth proportional to 388,622,065.86, 582,847,111.35 and 112,213,281.60 is: 168,295,093.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,622,065.86 : 582,847,111.35 = 112,213,281.60 : x
  2. Step 2: Convert to fraction form
    388,622,065.86/582,847,111.35 = 112,213,281.60/x
  3. Step 3: Cross multiply
    388,622,065.86x = 582,847,111.35 × 112,213,281.60
  4. Step 4: Simplify right side
    388,622,065.86x = 65,403,187,035,664,104
  5. Step 5: Solve for x
    x = 65,403,187,035,664,104/388,622,065.86
  6. Step 6: Final answer
    x = 168,295,093.82

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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.