Home / 12,180,988,702.85-18,267,938,418.87-4,717,906,938.54

Finding the Fourth Proportional to 12,180,988,702.85, 18,267,938,418.87 and 4,717,906,938.54

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Solution

The fourth proportional to 12,180,988,702.85, 18,267,938,418.87 and 4,717,906,938.54 is: 7,075,487,509.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180,988,702.85 : 18,267,938,418.87 = 4,717,906,938.54 : x
  2. Step 2: Convert to fraction form
    12,180,988,702.85/18,267,938,418.87 = 4,717,906,938.54/x
  3. Step 3: Cross multiply
    12,180,988,702.85x = 18,267,938,418.87 × 4,717,906,938.54
  4. Step 4: Simplify right side
    12,180,988,702.85x = 86,186,433,419,208,196,096
  5. Step 5: Solve for x
    x = 86,186,433,419,208,196,096/12,180,988,702.85
  6. Step 6: Final answer
    x = 7,075,487,509.41

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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.