Home / 1,972,476,522.02-2,722,288,408.79-1,209,385,603.45

Finding the Fourth Proportional to 1,972,476,522.02, 2,722,288,408.79 and 1,209,385,603.45

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Solution

The fourth proportional to 1,972,476,522.02, 2,722,288,408.79 and 1,209,385,603.45 is: 1,669,118,173.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972,476,522.02 : 2,722,288,408.79 = 1,209,385,603.45 : x
  2. Step 2: Convert to fraction form
    1,972,476,522.02/2,722,288,408.79 = 1,209,385,603.45/x
  3. Step 3: Cross multiply
    1,972,476,522.02x = 2,722,288,408.79 × 1,209,385,603.45
  4. Step 4: Simplify right side
    1,972,476,522.02x = 3,292,296,410,026,926,080
  5. Step 5: Solve for x
    x = 3,292,296,410,026,926,080/1,972,476,522.02
  6. Step 6: Final answer
    x = 1,669,118,173.66

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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.