Home / 808,703,945.70-1,213,055,918.55-291,214,256.10

Finding the Fourth Proportional to 808,703,945.70, 1,213,055,918.55 and 291,214,256.10

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Solution

The fourth proportional to 808,703,945.70, 1,213,055,918.55 and 291,214,256.10 is: 436,821,384.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,703,945.70 : 1,213,055,918.55 = 291,214,256.10 : x
  2. Step 2: Convert to fraction form
    808,703,945.70/1,213,055,918.55 = 291,214,256.10/x
  3. Step 3: Cross multiply
    808,703,945.70x = 1,213,055,918.55 × 291,214,256.10
  4. Step 4: Simplify right side
    808,703,945.70x = 353,259,176,928,240,448
  5. Step 5: Solve for x
    x = 353,259,176,928,240,448/808,703,945.70
  6. Step 6: Final answer
    x = 436,821,384.15

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Double scale
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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.