Home / 219,860,831.20-329,780,749.20-74,280,114.40

Finding the Fourth Proportional to 219,860,831.20, 329,780,749.20 and 74,280,114.40

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Solution

The fourth proportional to 219,860,831.20, 329,780,749.20 and 74,280,114.40 is: 111,416,624.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,860,831.20 : 329,780,749.20 = 74,280,114.40 : x
  2. Step 2: Convert to fraction form
    219,860,831.20/329,780,749.20 = 74,280,114.40/x
  3. Step 3: Cross multiply
    219,860,831.20x = 329,780,749.20 × 74,280,114.40
  4. Step 4: Simplify right side
    219,860,831.20x = 24,496,151,777,493,708
  5. Step 5: Solve for x
    x = 24,496,151,777,493,708/219,860,831.20
  6. Step 6: Final answer
    x = 111,416,624.98

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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.