Home / 3,638,408,032.15-5,021,018,211.95-1,967,657,172.73

Finding the Fourth Proportional to 3,638,408,032.15, 5,021,018,211.95 and 1,967,657,172.73

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Solution

The fourth proportional to 3,638,408,032.15, 5,021,018,211.95 and 1,967,657,172.73 is: 2,715,375,079.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638,408,032.15 : 5,021,018,211.95 = 1,967,657,172.73 : x
  2. Step 2: Convert to fraction form
    3,638,408,032.15/5,021,018,211.95 = 1,967,657,172.73/x
  3. Step 3: Cross multiply
    3,638,408,032.15x = 5,021,018,211.95 × 1,967,657,172.73
  4. Step 4: Simplify right side
    3,638,408,032.15x = 9,879,642,499,151,376,384
  5. Step 5: Solve for x
    x = 9,879,642,499,151,376,384/3,638,408,032.15
  6. Step 6: Final answer
    x = 2,715,375,079.39

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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.