Home / 1,003,960,787.76-1,385,499,532.24-557,942,949.68

Finding the Fourth Proportional to 1,003,960,787.76, 1,385,499,532.24 and 557,942,949.68

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Solution

The fourth proportional to 1,003,960,787.76, 1,385,499,532.24 and 557,942,949.68 is: 769,979,968.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,960,787.76 : 1,385,499,532.24 = 557,942,949.68 : x
  2. Step 2: Convert to fraction form
    1,003,960,787.76/1,385,499,532.24 = 557,942,949.68/x
  3. Step 3: Cross multiply
    1,003,960,787.76x = 1,385,499,532.24 × 557,942,949.68
  4. Step 4: Simplify right side
    1,003,960,787.76x = 773,029,695,798,245,760
  5. Step 5: Solve for x
    x = 773,029,695,798,245,760/1,003,960,787.76
  6. Step 6: Final answer
    x = 769,979,968.56

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Double scale
Find fourth proportional to 1,003,960,788.76, 1,385,499,533.62 and 557,942,950.68
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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.