Home / 258,850,807.80-388,276,211.70-235,420,164.60

Finding the Fourth Proportional to 258,850,807.80, 388,276,211.70 and 235,420,164.60

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Solution

The fourth proportional to 258,850,807.80, 388,276,211.70 and 235,420,164.60 is: 353,130,246.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,850,807.80 : 388,276,211.70 = 235,420,164.60 : x
  2. Step 2: Convert to fraction form
    258,850,807.80/388,276,211.70 = 235,420,164.60/x
  3. Step 3: Cross multiply
    258,850,807.80x = 388,276,211.70 × 235,420,164.60
  4. Step 4: Simplify right side
    258,850,807.80x = 91,408,049,668,678,448
  5. Step 5: Solve for x
    x = 91,408,049,668,678,448/258,850,807.80
  6. Step 6: Final answer
    x = 353,130,246.90

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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.