Home / 388,063,396.64-535,524,763.08-211,851,392

Finding the Fourth Proportional to 388,063,396.64, 535,524,763.08 and 211,851,392

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Solution

The fourth proportional to 388,063,396.64, 535,524,763.08 and 211,851,392 is: 292,353,433.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,063,396.64 : 535,524,763.08 = 211,851,392 : x
  2. Step 2: Convert to fraction form
    388,063,396.64/535,524,763.08 = 211,851,392/x
  3. Step 3: Cross multiply
    388,063,396.64x = 535,524,763.08 × 211,851,392
  4. Step 4: Simplify right side
    388,063,396.64x = 113,451,666,508,968,208
  5. Step 5: Solve for x
    x = 113,451,666,508,968,208/388,063,396.64
  6. Step 6: Final answer
    x = 292,353,433.72

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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.