Home / 470,339,561.28-705,463,752.48-142,817,953.44

Finding the Fourth Proportional to 470,339,561.28, 705,463,752.48 and 142,817,953.44

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Solution

The fourth proportional to 470,339,561.28, 705,463,752.48 and 142,817,953.44 is: 214,213,086.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,339,561.28 : 705,463,752.48 = 142,817,953.44 : x
  2. Step 2: Convert to fraction form
    470,339,561.28/705,463,752.48 = 142,817,953.44/x
  3. Step 3: Cross multiply
    470,339,561.28x = 705,463,752.48 × 142,817,953.44
  4. Step 4: Simplify right side
    470,339,561.28x = 100,752,889,355,296,320
  5. Step 5: Solve for x
    x = 100,752,889,355,296,320/470,339,561.28
  6. Step 6: Final answer
    x = 214,213,086.99

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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.