Home / 921,752,467.75-1,272,116,981.89-564,757,161.44

Finding the Fourth Proportional to 921,752,467.75, 1,272,116,981.89 and 564,757,161.44

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Solution

The fourth proportional to 921,752,467.75, 1,272,116,981.89 and 564,757,161.44 is: 779,425,280.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,752,467.75 : 1,272,116,981.89 = 564,757,161.44 : x
  2. Step 2: Convert to fraction form
    921,752,467.75/1,272,116,981.89 = 564,757,161.44/x
  3. Step 3: Cross multiply
    921,752,467.75x = 1,272,116,981.89 × 564,757,161.44
  4. Step 4: Simplify right side
    921,752,467.75x = 718,437,175,713,257,344
  5. Step 5: Solve for x
    x = 718,437,175,713,257,344/921,752,467.75
  6. Step 6: Final answer
    x = 779,425,280.48

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1.5x scale

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.