Home / 499,688,730,121.50-689,570,447,567.76-285,832,620,193.50

Finding the Fourth Proportional to 499,688,730,121.50, 689,570,447,567.76 and 285,832,620,193.50

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Solution

The fourth proportional to 499,688,730,121.50, 689,570,447,567.76 and 285,832,620,193.50 is: 394,449,015,867.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,688,730,121.50 : 689,570,447,567.76 = 285,832,620,193.50 : x
  2. Step 2: Convert to fraction form
    499,688,730,121.50/689,570,447,567.76 = 285,832,620,193.50/x
  3. Step 3: Cross multiply
    499,688,730,121.50x = 689,570,447,567.76 × 285,832,620,193.50
  4. Step 4: Simplify right side
    499,688,730,121.50x = 197,101,727,836,297,354,018,816
  5. Step 5: Solve for x
    x = 197,101,727,836,297,354,018,816/499,688,730,121.50
  6. Step 6: Final answer
    x = 394,449,015,867.08

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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.