Home / 354,881,845.02-489,755,748.90-213,797,478.12

Finding the Fourth Proportional to 354,881,845.02, 489,755,748.90 and 213,797,478.12

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Solution

The fourth proportional to 354,881,845.02, 489,755,748.90 and 213,797,478.12 is: 295,051,847.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,881,845.02 : 489,755,748.90 = 213,797,478.12 : x
  2. Step 2: Convert to fraction form
    354,881,845.02/489,755,748.90 = 213,797,478.12/x
  3. Step 3: Cross multiply
    354,881,845.02x = 489,755,748.90 × 213,797,478.12
  4. Step 4: Simplify right side
    354,881,845.02x = 104,708,544,009,591,968
  5. Step 5: Solve for x
    x = 104,708,544,009,591,968/354,881,845.02
  6. Step 6: Final answer
    x = 295,051,847.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.