Home / 499,688,730,119.94-689,570,447,565.54-285,832,620,191.88

Finding the Fourth Proportional to 499,688,730,119.94, 689,570,447,565.54 and 285,832,620,191.88

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Solution

The fourth proportional to 499,688,730,119.94, 689,570,447,565.54 and 285,832,620,191.88 is: 394,449,015,864.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,688,730,119.94 : 689,570,447,565.54 = 285,832,620,191.88 : x
  2. Step 2: Convert to fraction form
    499,688,730,119.94/689,570,447,565.54 = 285,832,620,191.88/x
  3. Step 3: Cross multiply
    499,688,730,119.94x = 689,570,447,565.54 × 285,832,620,191.88
  4. Step 4: Simplify right side
    499,688,730,119.94x = 197,101,727,834,545,712,005,120
  5. Step 5: Solve for x
    x = 197,101,727,834,545,712,005,120/499,688,730,119.94
  6. Step 6: Final answer
    x = 394,449,015,864.81

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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.