Home / 692,212,432.24-955,253,203.08-378,946,646.20

Finding the Fourth Proportional to 692,212,432.24, 955,253,203.08 and 378,946,646.20

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Solution

The fourth proportional to 692,212,432.24, 955,253,203.08 and 378,946,646.20 is: 522,946,397.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,212,432.24 : 955,253,203.08 = 378,946,646.20 : x
  2. Step 2: Convert to fraction form
    692,212,432.24/955,253,203.08 = 378,946,646.20/x
  3. Step 3: Cross multiply
    692,212,432.24x = 955,253,203.08 × 378,946,646.20
  4. Step 4: Simplify right side
    692,212,432.24x = 361,989,997,578,973,504
  5. Step 5: Solve for x
    x = 361,989,997,578,973,504/692,212,432.24
  6. Step 6: Final answer
    x = 522,946,397.26

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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.