Home / 646,210,151,947.11-969,315,227,987.40-215,947,236,685.04

Finding the Fourth Proportional to 646,210,151,947.11, 969,315,227,987.40 and 215,947,236,685.04

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Solution

The fourth proportional to 646,210,151,947.11, 969,315,227,987.40 and 215,947,236,685.04 is: 323,920,855,049.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,210,151,947.11 : 969,315,227,987.40 = 215,947,236,685.04 : x
  2. Step 2: Convert to fraction form
    646,210,151,947.11/969,315,227,987.40 = 215,947,236,685.04/x
  3. Step 3: Cross multiply
    646,210,151,947.11x = 969,315,227,987.40 × 215,947,236,685.04
  4. Step 4: Simplify right side
    646,210,151,947.11x = 209,320,944,960,608,600,588,288
  5. Step 5: Solve for x
    x = 209,320,944,960,608,600,588,288/646,210,151,947.11
  6. Step 6: Final answer
    x = 323,920,855,049.86

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.