Home / 613,628,319.51-920,442,491.44-147,289,743.43

Finding the Fourth Proportional to 613,628,319.51, 920,442,491.44 and 147,289,743.43

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Solution

The fourth proportional to 613,628,319.51, 920,442,491.44 and 147,289,743.43 is: 220,934,618.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,628,319.51 : 920,442,491.44 = 147,289,743.43 : x
  2. Step 2: Convert to fraction form
    613,628,319.51/920,442,491.44 = 147,289,743.43/x
  3. Step 3: Cross multiply
    613,628,319.51x = 920,442,491.44 × 147,289,743.43
  4. Step 4: Simplify right side
    613,628,319.51x = 135,571,738,406,267,584
  5. Step 5: Solve for x
    x = 135,571,738,406,267,584/613,628,319.51
  6. Step 6: Final answer
    x = 220,934,618.07

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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.