Home / 21,387,611.60-32,077,480.80-13,286,088.80

Finding the Fourth Proportional to 21,387,611.60, 32,077,480.80 and 13,286,088.80

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Solution

The fourth proportional to 21,387,611.60, 32,077,480.80 and 13,286,088.80 is: 19,926,687.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,611.60 : 32,077,480.80 = 13,286,088.80 : x
  2. Step 2: Convert to fraction form
    21,387,611.60/32,077,480.80 = 13,286,088.80/x
  3. Step 3: Cross multiply
    21,387,611.60x = 32,077,480.80 × 13,286,088.80
  4. Step 4: Simplify right side
    21,387,611.60x = 426,184,258,389,095.06
  5. Step 5: Solve for x
    x = 426,184,258,389,095.06/21,387,611.60
  6. Step 6: Final answer
    x = 19,926,687.76

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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.