Home / 1,992,907,891.60-2,989,361,837.40-829,211,533.90

Finding the Fourth Proportional to 1,992,907,891.60, 2,989,361,837.40 and 829,211,533.90

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Solution

The fourth proportional to 1,992,907,891.60, 2,989,361,837.40 and 829,211,533.90 is: 1,243,817,300.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,907,891.60 : 2,989,361,837.40 = 829,211,533.90 : x
  2. Step 2: Convert to fraction form
    1,992,907,891.60/2,989,361,837.40 = 829,211,533.90/x
  3. Step 3: Cross multiply
    1,992,907,891.60x = 2,989,361,837.40 × 829,211,533.90
  4. Step 4: Simplify right side
    1,992,907,891.60x = 2,478,813,314,572,576,256
  5. Step 5: Solve for x
    x = 2,478,813,314,572,576,256/1,992,907,891.60
  6. Step 6: Final answer
    x = 1,243,817,300.85

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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.