Home / 989,362,803.80-1,485,508,620.90-553,533,944.60

Finding the Fourth Proportional to 989,362,803.80, 1,485,508,620.90 and 553,533,944.60

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Solution

The fourth proportional to 989,362,803.80, 1,485,508,620.90 and 553,533,944.60 is: 831,120,235.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,362,803.80 : 1,485,508,620.90 = 553,533,944.60 : x
  2. Step 2: Convert to fraction form
    989,362,803.80/1,485,508,620.90 = 553,533,944.60/x
  3. Step 3: Cross multiply
    989,362,803.80x = 1,485,508,620.90 × 553,533,944.60
  4. Step 4: Simplify right side
    989,362,803.80x = 822,279,446,664,083,072
  5. Step 5: Solve for x
    x = 822,279,446,664,083,072/989,362,803.80
  6. Step 6: Final answer
    x = 831,120,235.68

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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.