Home / 841,498,109.20-1,161,245,114.78-470,223,191.44

Finding the Fourth Proportional to 841,498,109.20, 1,161,245,114.78 and 470,223,191.44

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Solution

The fourth proportional to 841,498,109.20, 1,161,245,114.78 and 470,223,191.44 is: 648,895,556.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,498,109.20 : 1,161,245,114.78 = 470,223,191.44 : x
  2. Step 2: Convert to fraction form
    841,498,109.20/1,161,245,114.78 = 470,223,191.44/x
  3. Step 3: Cross multiply
    841,498,109.20x = 1,161,245,114.78 × 470,223,191.44
  4. Step 4: Simplify right side
    841,498,109.20x = 546,044,383,915,960,704
  5. Step 5: Solve for x
    x = 546,044,383,915,960,704/841,498,109.20
  6. Step 6: Final answer
    x = 648,895,556.56

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1.5x scale

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.