Home / 5,286,756,877.02-7,929,273,433.82-1,555,175,571.21

Finding the Fourth Proportional to 5,286,756,877.02, 7,929,273,433.82 and 1,555,175,571.21

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Solution

The fourth proportional to 5,286,756,877.02, 7,929,273,433.82 and 1,555,175,571.21 is: 2,332,509,821.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286,756,877.02 : 7,929,273,433.82 = 1,555,175,571.21 : x
  2. Step 2: Convert to fraction form
    5,286,756,877.02/7,929,273,433.82 = 1,555,175,571.21/x
  3. Step 3: Cross multiply
    5,286,756,877.02x = 7,929,273,433.82 × 1,555,175,571.21
  4. Step 4: Simplify right side
    5,286,756,877.02x = 12,331,412,341,713,831,936
  5. Step 5: Solve for x
    x = 12,331,412,341,713,831,936/5,286,756,877.02
  6. Step 6: Final answer
    x = 2,332,509,821.91

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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.