Home / 451,760,962.80-677,627,447.40-128,644,834.80

Finding the Fourth Proportional to 451,760,962.80, 677,627,447.40 and 128,644,834.80

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Solution

The fourth proportional to 451,760,962.80, 677,627,447.40 and 128,644,834.80 is: 192,963,266.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,760,962.80 : 677,627,447.40 = 128,644,834.80 : x
  2. Step 2: Convert to fraction form
    451,760,962.80/677,627,447.40 = 128,644,834.80/x
  3. Step 3: Cross multiply
    451,760,962.80x = 677,627,447.40 × 128,644,834.80
  4. Step 4: Simplify right side
    451,760,962.80x = 87,173,271,026,718,688
  5. Step 5: Solve for x
    x = 87,173,271,026,718,688/451,760,962.80
  6. Step 6: Final answer
    x = 192,963,266.43

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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.