Home / 989,713,963.80-1,484,193,032.10-299,391,787.80

Finding the Fourth Proportional to 989,713,963.80, 1,484,193,032.10 and 299,391,787.80

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Solution

The fourth proportional to 989,713,963.80, 1,484,193,032.10 and 299,391,787.80 is: 448,973,361.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,713,963.80 : 1,484,193,032.10 = 299,391,787.80 : x
  2. Step 2: Convert to fraction form
    989,713,963.80/1,484,193,032.10 = 299,391,787.80/x
  3. Step 3: Cross multiply
    989,713,963.80x = 1,484,193,032.10 × 299,391,787.80
  4. Step 4: Simplify right side
    989,713,963.80x = 444,355,205,320,721,792
  5. Step 5: Solve for x
    x = 444,355,205,320,721,792/989,713,963.80
  6. Step 6: Final answer
    x = 448,973,361.57

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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.