Home / 3,900,302,789,512.80-5,382,430,426,467.40-2,166,112,345,844.20

Finding the Fourth Proportional to 3,900,302,789,512.80, 5,382,430,426,467.40 and 2,166,112,345,844.20

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Solution

The fourth proportional to 3,900,302,789,512.80, 5,382,430,426,467.40 and 2,166,112,345,844.20 is: 2,989,242,022,123.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900,302,789,512.80 : 5,382,430,426,467.40 = 2,166,112,345,844.20 : x
  2. Step 2: Convert to fraction form
    3,900,302,789,512.80/5,382,430,426,467.40 = 2,166,112,345,844.20/x
  3. Step 3: Cross multiply
    3,900,302,789,512.80x = 5,382,430,426,467.40 × 2,166,112,345,844.20
  4. Step 4: Simplify right side
    3,900,302,789,512.80x = 11,658,948,997,418,498,499,018,752
  5. Step 5: Solve for x
    x = 11,658,948,997,418,498,499,018,752/3,900,302,789,512.80
  6. Step 6: Final answer
    x = 2,989,242,022,123.84

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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.