Home / 647,514,515.40-971,271,773.10-453,644,838.60

Finding the Fourth Proportional to 647,514,515.40, 971,271,773.10 and 453,644,838.60

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Solution

The fourth proportional to 647,514,515.40, 971,271,773.10 and 453,644,838.60 is: 680,467,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,514,515.40 : 971,271,773.10 = 453,644,838.60 : x
  2. Step 2: Convert to fraction form
    647,514,515.40/971,271,773.10 = 453,644,838.60/x
  3. Step 3: Cross multiply
    647,514,515.40x = 971,271,773.10 × 453,644,838.60
  4. Step 4: Simplify right side
    647,514,515.40x = 440,612,426,744,685,376
  5. Step 5: Solve for x
    x = 440,612,426,744,685,376/647,514,515.40
  6. Step 6: Final answer
    x = 680,467,257.90

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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.