Home / 883,147,145.36-1,218,751,120.76-486,684,359.91

Finding the Fourth Proportional to 883,147,145.36, 1,218,751,120.76 and 486,684,359.91

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Solution

The fourth proportional to 883,147,145.36, 1,218,751,120.76 and 486,684,359.91 is: 671,628,858.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,147,145.36 : 1,218,751,120.76 = 486,684,359.91 : x
  2. Step 2: Convert to fraction form
    883,147,145.36/1,218,751,120.76 = 486,684,359.91/x
  3. Step 3: Cross multiply
    883,147,145.36x = 1,218,751,120.76 × 486,684,359.91
  4. Step 4: Simplify right side
    883,147,145.36x = 593,147,109,094,242,432
  5. Step 5: Solve for x
    x = 593,147,109,094,242,432/883,147,145.36
  6. Step 6: Final answer
    x = 671,628,858.47

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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.