Home / 28,373,809.55-42,405,250.36-20,713,585.07

Finding the Fourth Proportional to 28,373,809.55, 42,405,250.36 and 20,713,585.07

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Solution

The fourth proportional to 28,373,809.55, 42,405,250.36 and 20,713,585.07 is: 30,956,885.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,373,809.55 : 42,405,250.36 = 20,713,585.07 : x
  2. Step 2: Convert to fraction form
    28,373,809.55/42,405,250.36 = 20,713,585.07/x
  3. Step 3: Cross multiply
    28,373,809.55x = 42,405,250.36 × 20,713,585.07
  4. Step 4: Simplify right side
    28,373,809.55x = 878,364,760,839,575.38
  5. Step 5: Solve for x
    x = 878,364,760,839,575.38/28,373,809.55
  6. Step 6: Final answer
    x = 30,956,885.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.