Home / 1,409,232,007.20-2,113,848,010.80-919,455,981.60

Finding the Fourth Proportional to 1,409,232,007.20, 2,113,848,010.80 and 919,455,981.60

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Solution

The fourth proportional to 1,409,232,007.20, 2,113,848,010.80 and 919,455,981.60 is: 1,379,183,972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,232,007.20 : 2,113,848,010.80 = 919,455,981.60 : x
  2. Step 2: Convert to fraction form
    1,409,232,007.20/2,113,848,010.80 = 919,455,981.60/x
  3. Step 3: Cross multiply
    1,409,232,007.20x = 2,113,848,010.80 × 919,455,981.60
  4. Step 4: Simplify right side
    1,409,232,007.20x = 1,943,590,197,723,321,344
  5. Step 5: Solve for x
    x = 1,943,590,197,723,321,344/1,409,232,007.20
  6. Step 6: Final answer
    x = 1,379,183,972.40

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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.