Home / 3,985,688,511.20-5,978,532,766.80-3,985,688,511.20

Finding the Fourth Proportional to 3,985,688,511.20, 5,978,532,766.80 and 3,985,688,511.20

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Solution

The fourth proportional to 3,985,688,511.20, 5,978,532,766.80 and 3,985,688,511.20 is: 5,978,532,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,688,511.20 : 5,978,532,766.80 = 3,985,688,511.20 : x
  2. Step 2: Convert to fraction form
    3,985,688,511.20/5,978,532,766.80 = 3,985,688,511.20/x
  3. Step 3: Cross multiply
    3,985,688,511.20x = 5,978,532,766.80 × 3,985,688,511.20
  4. Step 4: Simplify right side
    3,985,688,511.20x = 23,828,569,362,467,508,224
  5. Step 5: Solve for x
    x = 23,828,569,362,467,508,224/3,985,688,511.20
  6. Step 6: Final answer
    x = 5,978,532,766.80

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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.