Home / 920,392,412.28-1,270,104,832.87-518,496,799.04

Finding the Fourth Proportional to 920,392,412.28, 1,270,104,832.87 and 518,496,799.04

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Solution

The fourth proportional to 920,392,412.28, 1,270,104,832.87 and 518,496,799.04 is: 715,504,910.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,392,412.28 : 1,270,104,832.87 = 518,496,799.04 : x
  2. Step 2: Convert to fraction form
    920,392,412.28/1,270,104,832.87 = 518,496,799.04/x
  3. Step 3: Cross multiply
    920,392,412.28x = 1,270,104,832.87 × 518,496,799.04
  4. Step 4: Simplify right side
    920,392,412.28x = 658,545,290,288,329,088
  5. Step 5: Solve for x
    x = 658,545,290,288,329,088/920,392,412.28
  6. Step 6: Final answer
    x = 715,504,910.19

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Double scale
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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.