Home / 499,688,730,088.92-689,570,447,522.80-285,832,620,160.94

Finding the Fourth Proportional to 499,688,730,088.92, 689,570,447,522.80 and 285,832,620,160.94

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Solution

The fourth proportional to 499,688,730,088.92, 689,570,447,522.80 and 285,832,620,160.94 is: 394,449,015,822.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,688,730,088.92 : 689,570,447,522.80 = 285,832,620,160.94 : x
  2. Step 2: Convert to fraction form
    499,688,730,088.92/689,570,447,522.80 = 285,832,620,160.94/x
  3. Step 3: Cross multiply
    499,688,730,088.92x = 689,570,447,522.80 × 285,832,620,160.94
  4. Step 4: Simplify right side
    499,688,730,088.92x = 197,101,727,800,993,930,805,248
  5. Step 5: Solve for x
    x = 197,101,727,800,993,930,805,248/499,688,730,088.92
  6. Step 6: Final answer
    x = 394,449,015,822.15

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1.5x scale

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.