Home / 1,263,251,441.40-1,743,169,999.47-698,724,172.80

Finding the Fourth Proportional to 1,263,251,441.40, 1,743,169,999.47 and 698,724,172.80

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Solution

The fourth proportional to 1,263,251,441.40, 1,743,169,999.47 and 698,724,172.80 is: 964,174,649.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,251,441.40 : 1,743,169,999.47 = 698,724,172.80 : x
  2. Step 2: Convert to fraction form
    1,263,251,441.40/1,743,169,999.47 = 698,724,172.80/x
  3. Step 3: Cross multiply
    1,263,251,441.40x = 1,743,169,999.47 × 698,724,172.80
  4. Step 4: Simplify right side
    1,263,251,441.40x = 1,217,995,015,929,452,032
  5. Step 5: Solve for x
    x = 1,217,995,015,929,452,032/1,263,251,441.40
  6. Step 6: Final answer
    x = 964,174,649.65

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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.