Home / 1,118,111,236.60-1,543,062,541.80-616,318,890.20

Finding the Fourth Proportional to 1,118,111,236.60, 1,543,062,541.80 and 616,318,890.20

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Solution

The fourth proportional to 1,118,111,236.60, 1,543,062,541.80 and 616,318,890.20 is: 850,558,121.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,111,236.60 : 1,543,062,541.80 = 616,318,890.20 : x
  2. Step 2: Convert to fraction form
    1,118,111,236.60/1,543,062,541.80 = 616,318,890.20/x
  3. Step 3: Cross multiply
    1,118,111,236.60x = 1,543,062,541.80 × 616,318,890.20
  4. Step 4: Simplify right side
    1,118,111,236.60x = 951,018,593,271,367,168
  5. Step 5: Solve for x
    x = 951,018,593,271,367,168/1,118,111,236.60
  6. Step 6: Final answer
    x = 850,558,121.72

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Double scale
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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.