Home / 499,688,730,103.52-689,570,447,542.92-285,832,620,175.50

Finding the Fourth Proportional to 499,688,730,103.52, 689,570,447,542.92 and 285,832,620,175.50

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Solution

The fourth proportional to 499,688,730,103.52, 689,570,447,542.92 and 285,832,620,175.50 is: 394,449,015,842.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,688,730,103.52 : 689,570,447,542.92 = 285,832,620,175.50 : x
  2. Step 2: Convert to fraction form
    499,688,730,103.52/689,570,447,542.92 = 285,832,620,175.50/x
  3. Step 3: Cross multiply
    499,688,730,103.52x = 689,570,447,542.92 × 285,832,620,175.50
  4. Step 4: Simplify right side
    499,688,730,103.52x = 197,101,727,816,785,015,603,200
  5. Step 5: Solve for x
    x = 197,101,727,816,785,015,603,200/499,688,730,103.52
  6. Step 6: Final answer
    x = 394,449,015,842.23

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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.