Home / 647,516,160.88-971,135,080.08-204,893,915.92

Finding the Fourth Proportional to 647,516,160.88, 971,135,080.08 and 204,893,915.92

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Solution

The fourth proportional to 647,516,160.88, 971,135,080.08 and 204,893,915.92 is: 307,296,839.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,516,160.88 : 971,135,080.08 = 204,893,915.92 : x
  2. Step 2: Convert to fraction form
    647,516,160.88/971,135,080.08 = 204,893,915.92/x
  3. Step 3: Cross multiply
    647,516,160.88x = 971,135,080.08 × 204,893,915.92
  4. Step 4: Simplify right side
    647,516,160.88x = 198,979,669,444,873,984
  5. Step 5: Solve for x
    x = 198,979,669,444,873,984/647,516,160.88
  6. Step 6: Final answer
    x = 307,296,839.01

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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.