Home / 647,608,488.48-971,480,772.72-210,943,216.80

Finding the Fourth Proportional to 647,608,488.48, 971,480,772.72 and 210,943,216.80

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Solution

The fourth proportional to 647,608,488.48, 971,480,772.72 and 210,943,216.80 is: 316,436,987.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,608,488.48 : 971,480,772.72 = 210,943,216.80 : x
  2. Step 2: Convert to fraction form
    647,608,488.48/971,480,772.72 = 210,943,216.80/x
  3. Step 3: Cross multiply
    647,608,488.48x = 971,480,772.72 × 210,943,216.80
  4. Step 4: Simplify right side
    647,608,488.48x = 204,927,279,256,906,496
  5. Step 5: Solve for x
    x = 204,927,279,256,906,496/647,608,488.48
  6. Step 6: Final answer
    x = 316,436,987.63

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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.