Home / 1,003,960,783.36-1,385,499,522.54-557,942,943.88

Finding the Fourth Proportional to 1,003,960,783.36, 1,385,499,522.54 and 557,942,943.88

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Solution

The fourth proportional to 1,003,960,783.36, 1,385,499,522.54 and 557,942,943.88 is: 769,979,958.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,960,783.36 : 1,385,499,522.54 = 557,942,943.88 : x
  2. Step 2: Convert to fraction form
    1,003,960,783.36/1,385,499,522.54 = 557,942,943.88/x
  3. Step 3: Cross multiply
    1,003,960,783.36x = 1,385,499,522.54 × 557,942,943.88
  4. Step 4: Simplify right side
    1,003,960,783.36x = 773,029,682,350,301,952
  5. Step 5: Solve for x
    x = 773,029,682,350,301,952/1,003,960,783.36
  6. Step 6: Final answer
    x = 769,979,958.54

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Double scale
Find fourth proportional to 1,003,960,784.36, 1,385,499,523.92 and 557,942,944.88
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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.