Home / 258,893,656.80-388,340,485.20-157,303,845.60

Finding the Fourth Proportional to 258,893,656.80, 388,340,485.20 and 157,303,845.60

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Solution

The fourth proportional to 258,893,656.80, 388,340,485.20 and 157,303,845.60 is: 235,955,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,893,656.80 : 388,340,485.20 = 157,303,845.60 : x
  2. Step 2: Convert to fraction form
    258,893,656.80/388,340,485.20 = 157,303,845.60/x
  3. Step 3: Cross multiply
    258,893,656.80x = 388,340,485.20 × 157,303,845.60
  4. Step 4: Simplify right side
    258,893,656.80x = 61,087,451,724,129,880
  5. Step 5: Solve for x
    x = 61,087,451,724,129,880/258,893,656.80
  6. Step 6: Final answer
    x = 235,955,768.40

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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.