Home / 144,692,714.10-217,291,013.55-76,668,266.10

Finding the Fourth Proportional to 144,692,714.10, 217,291,013.55 and 76,668,266.10

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Solution

The fourth proportional to 144,692,714.10, 217,291,013.55 and 76,668,266.10 is: 115,135,895.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,692,714.10 : 217,291,013.55 = 76,668,266.10 : x
  2. Step 2: Convert to fraction form
    144,692,714.10/217,291,013.55 = 76,668,266.10/x
  3. Step 3: Cross multiply
    144,692,714.10x = 217,291,013.55 × 76,668,266.10
  4. Step 4: Simplify right side
    144,692,714.10x = 16,659,325,247,990,106
  5. Step 5: Solve for x
    x = 16,659,325,247,990,106/144,692,714.10
  6. Step 6: Final answer
    x = 115,135,895.76

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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.