Home / 470,783,205.60-706,174,808.40-212,122,341.60

Finding the Fourth Proportional to 470,783,205.60, 706,174,808.40 and 212,122,341.60

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Solution

The fourth proportional to 470,783,205.60, 706,174,808.40 and 212,122,341.60 is: 318,183,512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,783,205.60 : 706,174,808.40 = 212,122,341.60 : x
  2. Step 2: Convert to fraction form
    470,783,205.60/706,174,808.40 = 212,122,341.60/x
  3. Step 3: Cross multiply
    470,783,205.60x = 706,174,808.40 × 212,122,341.60
  4. Step 4: Simplify right side
    470,783,205.60x = 149,795,453,936,739,328
  5. Step 5: Solve for x
    x = 149,795,453,936,739,328/470,783,205.60
  6. Step 6: Final answer
    x = 318,183,512.40

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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.