Home / 989,362,801.80-1,485,508,617.90-553,533,942.60

Finding the Fourth Proportional to 989,362,801.80, 1,485,508,617.90 and 553,533,942.60

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Solution

The fourth proportional to 989,362,801.80, 1,485,508,617.90 and 553,533,942.60 is: 831,120,232.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,362,801.80 : 1,485,508,617.90 = 553,533,942.60 : x
  2. Step 2: Convert to fraction form
    989,362,801.80/1,485,508,617.90 = 553,533,942.60/x
  3. Step 3: Cross multiply
    989,362,801.80x = 1,485,508,617.90 × 553,533,942.60
  4. Step 4: Simplify right side
    989,362,801.80x = 822,279,442,032,464,000
  5. Step 5: Solve for x
    x = 822,279,442,032,464,000/989,362,801.80
  6. Step 6: Final answer
    x = 831,120,232.68

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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.