Home / 780,032,261.40-1,170,048,392.10-262,290,629.40

Finding the Fourth Proportional to 780,032,261.40, 1,170,048,392.10 and 262,290,629.40

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Solution

The fourth proportional to 780,032,261.40, 1,170,048,392.10 and 262,290,629.40 is: 393,435,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,032,261.40 : 1,170,048,392.10 = 262,290,629.40 : x
  2. Step 2: Convert to fraction form
    780,032,261.40/1,170,048,392.10 = 262,290,629.40/x
  3. Step 3: Cross multiply
    780,032,261.40x = 1,170,048,392.10 × 262,290,629.40
  4. Step 4: Simplify right side
    780,032,261.40x = 306,892,729,192,366,976
  5. Step 5: Solve for x
    x = 306,892,729,192,366,976/780,032,261.40
  6. Step 6: Final answer
    x = 393,435,944.10

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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.