Home / 859,633,786,285.20-1,289,450,679,427.80-412,223,386,899.60

Finding the Fourth Proportional to 859,633,786,285.20, 1,289,450,679,427.80 and 412,223,386,899.60

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Solution

The fourth proportional to 859,633,786,285.20, 1,289,450,679,427.80 and 412,223,386,899.60 is: 618,335,080,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,633,786,285.20 : 1,289,450,679,427.80 = 412,223,386,899.60 : x
  2. Step 2: Convert to fraction form
    859,633,786,285.20/1,289,450,679,427.80 = 412,223,386,899.60/x
  3. Step 3: Cross multiply
    859,633,786,285.20x = 1,289,450,679,427.80 × 412,223,386,899.60
  4. Step 4: Simplify right side
    859,633,786,285.20x = 531,541,726,313,718,048,882,688
  5. Step 5: Solve for x
    x = 531,541,726,313,718,048,882,688/859,633,786,285.20
  6. Step 6: Final answer
    x = 618,335,080,349.40

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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.