Home / 219,860,840.20-329,780,762.70-74,280,123.40

Finding the Fourth Proportional to 219,860,840.20, 329,780,762.70 and 74,280,123.40

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Solution

The fourth proportional to 219,860,840.20, 329,780,762.70 and 74,280,123.40 is: 111,416,638.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,860,840.20 : 329,780,762.70 = 74,280,123.40 : x
  2. Step 2: Convert to fraction form
    219,860,840.20/329,780,762.70 = 74,280,123.40/x
  3. Step 3: Cross multiply
    219,860,840.20x = 329,780,762.70 × 74,280,123.40
  4. Step 4: Simplify right side
    219,860,840.20x = 24,496,155,748,302,120
  5. Step 5: Solve for x
    x = 24,496,155,748,302,120/219,860,840.20
  6. Step 6: Final answer
    x = 111,416,638.48

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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.