Home / 646,091,791.68-969,258,060.32-209,353,529.28

Finding the Fourth Proportional to 646,091,791.68, 969,258,060.32 and 209,353,529.28

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Solution

The fourth proportional to 646,091,791.68, 969,258,060.32 and 209,353,529.28 is: 314,069,298.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,091,791.68 : 969,258,060.32 = 209,353,529.28 : x
  2. Step 2: Convert to fraction form
    646,091,791.68/969,258,060.32 = 209,353,529.28/x
  3. Step 3: Cross multiply
    646,091,791.68x = 969,258,060.32 × 209,353,529.28
  4. Step 4: Simplify right side
    646,091,791.68x = 202,917,595,711,079,136
  5. Step 5: Solve for x
    x = 202,917,595,711,079,136/646,091,791.68
  6. Step 6: Final answer
    x = 314,069,298.39

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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.