Home / 199,293,885.90-298,701,680.40-102,199,615.20

Finding the Fourth Proportional to 199,293,885.90, 298,701,680.40 and 102,199,615.20

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Solution

The fourth proportional to 199,293,885.90, 298,701,680.40 and 102,199,615.20 is: 153,176,785.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,293,885.90 : 298,701,680.40 = 102,199,615.20 : x
  2. Step 2: Convert to fraction form
    199,293,885.90/298,701,680.40 = 102,199,615.20/x
  3. Step 3: Cross multiply
    199,293,885.90x = 298,701,680.40 × 102,199,615.20
  4. Step 4: Simplify right side
    199,293,885.90x = 30,527,196,796,473,380
  5. Step 5: Solve for x
    x = 30,527,196,796,473,380/199,293,885.90
  6. Step 6: Final answer
    x = 153,176,785.42

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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.