Home / 666,137,235.68-919,365,588.20-383,825,627.72

Finding the Fourth Proportional to 666,137,235.68, 919,365,588.20 and 383,825,627.72

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Solution

The fourth proportional to 666,137,235.68, 919,365,588.20 and 383,825,627.72 is: 529,734,798.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,137,235.68 : 919,365,588.20 = 383,825,627.72 : x
  2. Step 2: Convert to fraction form
    666,137,235.68/919,365,588.20 = 383,825,627.72/x
  3. Step 3: Cross multiply
    666,137,235.68x = 919,365,588.20 × 383,825,627.72
  4. Step 4: Simplify right side
    666,137,235.68x = 352,876,073,995,032,064
  5. Step 5: Solve for x
    x = 352,876,073,995,032,064/666,137,235.68
  6. Step 6: Final answer
    x = 529,734,798.02

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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.