Home / 869,165,201.80-1,303,747,802.70-665,091,857.80

Finding the Fourth Proportional to 869,165,201.80, 1,303,747,802.70 and 665,091,857.80

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Solution

The fourth proportional to 869,165,201.80, 1,303,747,802.70 and 665,091,857.80 is: 997,637,786.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,165,201.80 : 1,303,747,802.70 = 665,091,857.80 : x
  2. Step 2: Convert to fraction form
    869,165,201.80/1,303,747,802.70 = 665,091,857.80/x
  3. Step 3: Cross multiply
    869,165,201.80x = 1,303,747,802.70 × 665,091,857.80
  4. Step 4: Simplify right side
    869,165,201.80x = 867,112,048,200,410,880
  5. Step 5: Solve for x
    x = 867,112,048,200,410,880/869,165,201.80
  6. Step 6: Final answer
    x = 997,637,786.70

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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.