Home / 630,287,106.21-945,558,210.83-221,375,143.17

Finding the Fourth Proportional to 630,287,106.21, 945,558,210.83 and 221,375,143.17

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Solution

The fourth proportional to 630,287,106.21, 945,558,210.83 and 221,375,143.17 is: 332,107,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,287,106.21 : 945,558,210.83 = 221,375,143.17 : x
  2. Step 2: Convert to fraction form
    630,287,106.21/945,558,210.83 = 221,375,143.17/x
  3. Step 3: Cross multiply
    630,287,106.21x = 945,558,210.83 × 221,375,143.17
  4. Step 4: Simplify right side
    630,287,106.21x = 209,323,084,296,953,408
  5. Step 5: Solve for x
    x = 209,323,084,296,953,408/630,287,106.21
  6. Step 6: Final answer
    x = 332,107,514.55

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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.