Home / 811,147,586.58-1,119,383,967.69-439,869,519.54

Finding the Fourth Proportional to 811,147,586.58, 1,119,383,967.69 and 439,869,519.54

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Solution

The fourth proportional to 811,147,586.58, 1,119,383,967.69 and 439,869,519.54 is: 607,020,098.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,147,586.58 : 1,119,383,967.69 = 439,869,519.54 : x
  2. Step 2: Convert to fraction form
    811,147,586.58/1,119,383,967.69 = 439,869,519.54/x
  3. Step 3: Cross multiply
    811,147,586.58x = 1,119,383,967.69 × 439,869,519.54
  4. Step 4: Simplify right side
    811,147,586.58x = 492,382,888,048,579,264
  5. Step 5: Solve for x
    x = 492,382,888,048,579,264/811,147,586.58
  6. Step 6: Final answer
    x = 607,020,098.68

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.