Home / 499,688,730,083.64-689,570,447,515.45-285,832,620,155.66

Finding the Fourth Proportional to 499,688,730,083.64, 689,570,447,515.45 and 285,832,620,155.66

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Solution

The fourth proportional to 499,688,730,083.64, 689,570,447,515.45 and 285,832,620,155.66 is: 394,449,015,814.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,688,730,083.64 : 689,570,447,515.45 = 285,832,620,155.66 : x
  2. Step 2: Convert to fraction form
    499,688,730,083.64/689,570,447,515.45 = 285,832,620,155.66/x
  3. Step 3: Cross multiply
    499,688,730,083.64x = 689,570,447,515.45 × 285,832,620,155.66
  4. Step 4: Simplify right side
    499,688,730,083.64x = 197,101,727,795,252,062,846,976
  5. Step 5: Solve for x
    x = 197,101,727,795,252,062,846,976/499,688,730,083.64
  6. Step 6: Final answer
    x = 394,449,015,814.83

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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.