Home / 1,168,108,482.05-1,611,989,783.85-639,472,468.11

Finding the Fourth Proportional to 1,168,108,482.05, 1,611,989,783.85 and 639,472,468.11

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Solution

The fourth proportional to 1,168,108,482.05, 1,611,989,783.85 and 639,472,468.11 is: 882,472,049.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,108,482.05 : 1,611,989,783.85 = 639,472,468.11 : x
  2. Step 2: Convert to fraction form
    1,168,108,482.05/1,611,989,783.85 = 639,472,468.11/x
  3. Step 3: Cross multiply
    1,168,108,482.05x = 1,611,989,783.85 × 639,472,468.11
  4. Step 4: Simplify right side
    1,168,108,482.05x = 1,030,823,085,646,664,832
  5. Step 5: Solve for x
    x = 1,030,823,085,646,664,832/1,168,108,482.05
  6. Step 6: Final answer
    x = 882,472,049.03

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Double scale
Find fourth proportional to 1,168,108,483.05, 1,611,989,785.23 and 639,472,469.11
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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.