Home / 30,053,908.80-45,080,863.20-20,487,970.80

Finding the Fourth Proportional to 30,053,908.80, 45,080,863.20 and 20,487,970.80

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Solution

The fourth proportional to 30,053,908.80, 45,080,863.20 and 20,487,970.80 is: 30,731,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,053,908.80 : 45,080,863.20 = 20,487,970.80 : x
  2. Step 2: Convert to fraction form
    30,053,908.80/45,080,863.20 = 20,487,970.80/x
  3. Step 3: Cross multiply
    30,053,908.80x = 45,080,863.20 × 20,487,970.80
  4. Step 4: Simplify right side
    30,053,908.80x = 923,615,408,880,394.62
  5. Step 5: Solve for x
    x = 923,615,408,880,394.62/30,053,908.80
  6. Step 6: Final answer
    x = 30,731,956.20

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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.