Home / 2,172,172,881.84-2,997,697,284.36-1,280,137,256.88

Finding the Fourth Proportional to 2,172,172,881.84, 2,997,697,284.36 and 1,280,137,256.88

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Solution

The fourth proportional to 2,172,172,881.84, 2,997,697,284.36 and 1,280,137,256.88 is: 1,766,647,586.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172,172,881.84 : 2,997,697,284.36 = 1,280,137,256.88 : x
  2. Step 2: Convert to fraction form
    2,172,172,881.84/2,997,697,284.36 = 1,280,137,256.88/x
  3. Step 3: Cross multiply
    2,172,172,881.84x = 2,997,697,284.36 × 1,280,137,256.88
  4. Step 4: Simplify right side
    2,172,172,881.84x = 3,837,463,978,557,236,224
  5. Step 5: Solve for x
    x = 3,837,463,978,557,236,224/2,172,172,881.84
  6. Step 6: Final answer
    x = 1,766,647,586.22

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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.