Home / 1,036,638,120.55-1,554,957,180.83-649,217,631.55

Finding the Fourth Proportional to 1,036,638,120.55, 1,554,957,180.83 and 649,217,631.55

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Solution

The fourth proportional to 1,036,638,120.55, 1,554,957,180.83 and 649,217,631.55 is: 973,826,447.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,638,120.55 : 1,554,957,180.83 = 649,217,631.55 : x
  2. Step 2: Convert to fraction form
    1,036,638,120.55/1,554,957,180.83 = 649,217,631.55/x
  3. Step 3: Cross multiply
    1,036,638,120.55x = 1,554,957,180.83 × 649,217,631.55
  4. Step 4: Simplify right side
    1,036,638,120.55x = 1,009,505,618,100,117,504
  5. Step 5: Solve for x
    x = 1,009,505,618,100,117,504/1,036,638,120.55
  6. Step 6: Final answer
    x = 973,826,447.33

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Half scale
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Double scale
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Similar ratio
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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.