Home / 1,020,145,325.52-1,530,801,105.35-553,844,662.92

Finding the Fourth Proportional to 1,020,145,325.52, 1,530,801,105.35 and 553,844,662.92

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Solution

The fourth proportional to 1,020,145,325.52, 1,530,801,105.35 and 553,844,662.92 is: 831,083,573.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,145,325.52 : 1,530,801,105.35 = 553,844,662.92 : x
  2. Step 2: Convert to fraction form
    1,020,145,325.52/1,530,801,105.35 = 553,844,662.92/x
  3. Step 3: Cross multiply
    1,020,145,325.52x = 1,530,801,105.35 × 553,844,662.92
  4. Step 4: Simplify right side
    1,020,145,325.52x = 847,826,022,187,364,864
  5. Step 5: Solve for x
    x = 847,826,022,187,364,864/1,020,145,325.52
  6. Step 6: Final answer
    x = 831,083,573.07

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Double scale
Find fourth proportional to 1,020,145,326.52, 1,530,801,106.85 and 553,844,663.92
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1.5x scale

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.