Home / 1,211,192,640.44-1,671,756,832.70-788,858,719.76

Finding the Fourth Proportional to 1,211,192,640.44, 1,671,756,832.70 and 788,858,719.76

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Solution

The fourth proportional to 1,211,192,640.44, 1,671,756,832.70 and 788,858,719.76 is: 1,088,827,582.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,192,640.44 : 1,671,756,832.70 = 788,858,719.76 : x
  2. Step 2: Convert to fraction form
    1,211,192,640.44/1,671,756,832.70 = 788,858,719.76/x
  3. Step 3: Cross multiply
    1,211,192,640.44x = 1,671,756,832.70 × 788,858,719.76
  4. Step 4: Simplify right side
    1,211,192,640.44x = 1,318,779,954,793,754,624
  5. Step 5: Solve for x
    x = 1,318,779,954,793,754,624/1,211,192,640.44
  6. Step 6: Final answer
    x = 1,088,827,582.63

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Double scale
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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.