Home / 289,630,831.20-434,446,246.80-173,233,442.40

Finding the Fourth Proportional to 289,630,831.20, 434,446,246.80 and 173,233,442.40

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Solution

The fourth proportional to 289,630,831.20, 434,446,246.80 and 173,233,442.40 is: 259,850,163.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,630,831.20 : 434,446,246.80 = 173,233,442.40 : x
  2. Step 2: Convert to fraction form
    289,630,831.20/434,446,246.80 = 173,233,442.40/x
  3. Step 3: Cross multiply
    289,630,831.20x = 434,446,246.80 × 173,233,442.40
  4. Step 4: Simplify right side
    289,630,831.20x = 75,260,618,870,923,984
  5. Step 5: Solve for x
    x = 75,260,618,870,923,984/289,630,831.20
  6. Step 6: Final answer
    x = 259,850,163.60

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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.