Home / 206,699,793.40-310,049,690.10-130,172,289.40

Finding the Fourth Proportional to 206,699,793.40, 310,049,690.10 and 130,172,289.40

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Solution

The fourth proportional to 206,699,793.40, 310,049,690.10 and 130,172,289.40 is: 195,258,434.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,699,793.40 : 310,049,690.10 = 130,172,289.40 : x
  2. Step 2: Convert to fraction form
    206,699,793.40/310,049,690.10 = 130,172,289.40/x
  3. Step 3: Cross multiply
    206,699,793.40x = 310,049,690.10 × 130,172,289.40
  4. Step 4: Simplify right side
    206,699,793.40x = 40,359,877,988,077,520
  5. Step 5: Solve for x
    x = 40,359,877,988,077,520/206,699,793.40
  6. Step 6: Final answer
    x = 195,258,434.10

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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.