Home / 787,253,118,889.95-1,180,879,681,168.20-221,290,805,551.20

Finding the Fourth Proportional to 787,253,118,889.95, 1,180,879,681,168.20 and 221,290,805,551.20

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Solution

The fourth proportional to 787,253,118,889.95, 1,180,879,681,168.20 and 221,290,805,551.20 is: 331,936,209,123.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,253,118,889.95 : 1,180,879,681,168.20 = 221,290,805,551.20 : x
  2. Step 2: Convert to fraction form
    787,253,118,889.95/1,180,879,681,168.20 = 221,290,805,551.20/x
  3. Step 3: Cross multiply
    787,253,118,889.95x = 1,180,879,681,168.20 × 221,290,805,551.20
  4. Step 4: Simplify right side
    787,253,118,889.95x = 261,317,815,904,755,196,624,896
  5. Step 5: Solve for x
    x = 261,317,815,904,755,196,624,896/787,253,118,889.95
  6. Step 6: Final answer
    x = 331,936,209,123.21

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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.