Home / 2,128,896,427.20-3,190,955,853.60-1,209,213,355.20

Finding the Fourth Proportional to 2,128,896,427.20, 3,190,955,853.60 and 1,209,213,355.20

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Solution

The fourth proportional to 2,128,896,427.20, 3,190,955,853.60 and 1,209,213,355.20 is: 1,812,463,201.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,896,427.20 : 3,190,955,853.60 = 1,209,213,355.20 : x
  2. Step 2: Convert to fraction form
    2,128,896,427.20/3,190,955,853.60 = 1,209,213,355.20/x
  3. Step 3: Cross multiply
    2,128,896,427.20x = 3,190,955,853.60 × 1,209,213,355.20
  4. Step 4: Simplify right side
    2,128,896,427.20x = 3,858,546,434,026,736,128
  5. Step 5: Solve for x
    x = 3,858,546,434,026,736,128/2,128,896,427.20
  6. Step 6: Final answer
    x = 1,812,463,201.46

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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.