Home / 2,157,135,346.55-2,978,902,702.10-2,039,616,109.78

Finding the Fourth Proportional to 2,157,135,346.55, 2,978,902,702.10 and 2,039,616,109.78

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Solution

The fourth proportional to 2,157,135,346.55, 2,978,902,702.10 and 2,039,616,109.78 is: 2,816,614,150.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,135,346.55 : 2,978,902,702.10 = 2,039,616,109.78 : x
  2. Step 2: Convert to fraction form
    2,157,135,346.55/2,978,902,702.10 = 2,039,616,109.78/x
  3. Step 3: Cross multiply
    2,157,135,346.55x = 2,978,902,702.10 × 2,039,616,109.78
  4. Step 4: Simplify right side
    2,157,135,346.55x = 6,075,817,940,670,331,904
  5. Step 5: Solve for x
    x = 6,075,817,940,670,331,904/2,157,135,346.55
  6. Step 6: Final answer
    x = 2,816,614,150.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.