Home / 1,211,180,450.53-1,671,430,509.44-654,263,497.60

Finding the Fourth Proportional to 1,211,180,450.53, 1,671,430,509.44 and 654,263,497.60

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Solution

The fourth proportional to 1,211,180,450.53, 1,671,430,509.44 and 654,263,497.60 is: 902,884,430.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,180,450.53 : 1,671,430,509.44 = 654,263,497.60 : x
  2. Step 2: Convert to fraction form
    1,211,180,450.53/1,671,430,509.44 = 654,263,497.60/x
  3. Step 3: Cross multiply
    1,211,180,450.53x = 1,671,430,509.44 × 654,263,497.60
  4. Step 4: Simplify right side
    1,211,180,450.53x = 1,093,555,971,101,564,288
  5. Step 5: Solve for x
    x = 1,093,555,971,101,564,288/1,211,180,450.53
  6. Step 6: Final answer
    x = 902,884,430.33

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Double scale
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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.