Home / 21,942,611,810.76-30,280,289,271.24-12,910,954,891.08

Finding the Fourth Proportional to 21,942,611,810.76, 30,280,289,271.24 and 12,910,954,891.08

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Solution

The fourth proportional to 21,942,611,810.76, 30,280,289,271.24 and 12,910,954,891.08 is: 17,816,814,709.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,942,611,810.76 : 30,280,289,271.24 = 12,910,954,891.08 : x
  2. Step 2: Convert to fraction form
    21,942,611,810.76/30,280,289,271.24 = 12,910,954,891.08/x
  3. Step 3: Cross multiply
    21,942,611,810.76x = 30,280,289,271.24 × 12,910,954,891.08
  4. Step 4: Simplify right side
    21,942,611,810.76x = 390,947,448,869,833,342,976
  5. Step 5: Solve for x
    x = 390,947,448,869,833,342,976/21,942,611,810.76
  6. Step 6: Final answer
    x = 17,816,814,709.27

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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.