Home / 1,570,932,801.90-2,356,399,202.85-1,438,285,128.30

Finding the Fourth Proportional to 1,570,932,801.90, 2,356,399,202.85 and 1,438,285,128.30

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Solution

The fourth proportional to 1,570,932,801.90, 2,356,399,202.85 and 1,438,285,128.30 is: 2,157,427,692.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,932,801.90 : 2,356,399,202.85 = 1,438,285,128.30 : x
  2. Step 2: Convert to fraction form
    1,570,932,801.90/2,356,399,202.85 = 1,438,285,128.30/x
  3. Step 3: Cross multiply
    1,570,932,801.90x = 2,356,399,202.85 × 1,438,285,128.30
  4. Step 4: Simplify right side
    1,570,932,801.90x = 3,389,173,929,797,129,728
  5. Step 5: Solve for x
    x = 3,389,173,929,797,129,728/1,570,932,801.90
  6. Step 6: Final answer
    x = 2,157,427,692.45

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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.