Home / 14,978,570,840.79-20,660,472,470.88-9,632,893,509.69

Finding the Fourth Proportional to 14,978,570,840.79, 20,660,472,470.88 and 9,632,893,509.69

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Solution

The fourth proportional to 14,978,570,840.79, 20,660,472,470.88 and 9,632,893,509.69 is: 13,286,990,680.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,978,570,840.79 : 20,660,472,470.88 = 9,632,893,509.69 : x
  2. Step 2: Convert to fraction form
    14,978,570,840.79/20,660,472,470.88 = 9,632,893,509.69/x
  3. Step 3: Cross multiply
    14,978,570,840.79x = 20,660,472,470.88 × 9,632,893,509.69
  4. Step 4: Simplify right side
    14,978,570,840.79x = 199,020,131,171,868,901,376
  5. Step 5: Solve for x
    x = 199,020,131,171,868,901,376/14,978,570,840.79
  6. Step 6: Final answer
    x = 13,286,990,680.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.