Home / 499,688,730,118.94-689,570,447,564.16-285,832,620,190.88

Finding the Fourth Proportional to 499,688,730,118.94, 689,570,447,564.16 and 285,832,620,190.88

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Solution

The fourth proportional to 499,688,730,118.94, 689,570,447,564.16 and 285,832,620,190.88 is: 394,449,015,863.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,688,730,118.94 : 689,570,447,564.16 = 285,832,620,190.88 : x
  2. Step 2: Convert to fraction form
    499,688,730,118.94/689,570,447,564.16 = 285,832,620,190.88/x
  3. Step 3: Cross multiply
    499,688,730,118.94x = 689,570,447,564.16 × 285,832,620,190.88
  4. Step 4: Simplify right side
    499,688,730,118.94x = 197,101,727,833,461,702,524,928
  5. Step 5: Solve for x
    x = 197,101,727,833,461,702,524,928/499,688,730,118.94
  6. Step 6: Final answer
    x = 394,449,015,863.43

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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.