Home / 859,776,004.20-1,289,664,006.30-213,543,748.20

Finding the Fourth Proportional to 859,776,004.20, 1,289,664,006.30 and 213,543,748.20

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Solution

The fourth proportional to 859,776,004.20, 1,289,664,006.30 and 213,543,748.20 is: 320,315,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,776,004.20 : 1,289,664,006.30 = 213,543,748.20 : x
  2. Step 2: Convert to fraction form
    859,776,004.20/1,289,664,006.30 = 213,543,748.20/x
  3. Step 3: Cross multiply
    859,776,004.20x = 1,289,664,006.30 × 213,543,748.20
  4. Step 4: Simplify right side
    859,776,004.20x = 275,399,685,823,930,400
  5. Step 5: Solve for x
    x = 275,399,685,823,930,400/859,776,004.20
  6. Step 6: Final answer
    x = 320,315,622.30

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1.5x scale

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.