Home / 918,510,264.66-1,267,565,076.45-521,970,772.98

Finding the Fourth Proportional to 918,510,264.66, 1,267,565,076.45 and 521,970,772.98

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Solution

The fourth proportional to 918,510,264.66, 1,267,565,076.45 and 521,970,772.98 is: 720,331,550.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,510,264.66 : 1,267,565,076.45 = 521,970,772.98 : x
  2. Step 2: Convert to fraction form
    918,510,264.66/1,267,565,076.45 = 521,970,772.98/x
  3. Step 3: Cross multiply
    918,510,264.66x = 1,267,565,076.45 × 521,970,772.98
  4. Step 4: Simplify right side
    918,510,264.66x = 661,631,922,757,059,328
  5. Step 5: Solve for x
    x = 661,631,922,757,059,328/918,510,264.66
  6. Step 6: Final answer
    x = 720,331,550.13

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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.