Home / 989,362,800.80-1,485,508,616.40-553,533,941.60

Finding the Fourth Proportional to 989,362,800.80, 1,485,508,616.40 and 553,533,941.60

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Solution

The fourth proportional to 989,362,800.80, 1,485,508,616.40 and 553,533,941.60 is: 831,120,231.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,362,800.80 : 1,485,508,616.40 = 553,533,941.60 : x
  2. Step 2: Convert to fraction form
    989,362,800.80/1,485,508,616.40 = 553,533,941.60/x
  3. Step 3: Cross multiply
    989,362,800.80x = 1,485,508,616.40 × 553,533,941.60
  4. Step 4: Simplify right side
    989,362,800.80x = 822,279,439,716,654,464
  5. Step 5: Solve for x
    x = 822,279,439,716,654,464/989,362,800.80
  6. Step 6: Final answer
    x = 831,120,231.17

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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.