Home / 499,688,730,118.91-689,570,447,564.01-285,832,620,190.90

Finding the Fourth Proportional to 499,688,730,118.91, 689,570,447,564.01 and 285,832,620,190.90

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Solution

The fourth proportional to 499,688,730,118.91, 689,570,447,564.01 and 285,832,620,190.90 is: 394,449,015,863.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,688,730,118.91 : 689,570,447,564.01 = 285,832,620,190.90 : x
  2. Step 2: Convert to fraction form
    499,688,730,118.91/689,570,447,564.01 = 285,832,620,190.90/x
  3. Step 3: Cross multiply
    499,688,730,118.91x = 689,570,447,564.01 × 285,832,620,190.90
  4. Step 4: Simplify right side
    499,688,730,118.91x = 197,101,727,833,432,610,832,384
  5. Step 5: Solve for x
    x = 197,101,727,833,432,610,832,384/499,688,730,118.91
  6. Step 6: Final answer
    x = 394,449,015,863.39

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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.