Home / 1,211,125,858.36-1,671,354,416.94-654,209,151.46

Finding the Fourth Proportional to 1,211,125,858.36, 1,671,354,416.94 and 654,209,151.46

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Solution

The fourth proportional to 1,211,125,858.36, 1,671,354,416.94 and 654,209,151.46 is: 902,809,024.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,125,858.36 : 1,671,354,416.94 = 654,209,151.46 : x
  2. Step 2: Convert to fraction form
    1,211,125,858.36/1,671,354,416.94 = 654,209,151.46/x
  3. Step 3: Cross multiply
    1,211,125,858.36x = 1,671,354,416.94 × 654,209,151.46
  4. Step 4: Simplify right side
    1,211,125,858.36x = 1,093,415,354,895,240,576
  5. Step 5: Solve for x
    x = 1,093,415,354,895,240,576/1,211,125,858.36
  6. Step 6: Final answer
    x = 902,809,024.63

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1.5x scale

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.