Home / 866,054,530.80-1,299,081,796.20-815,036,194.80

Finding the Fourth Proportional to 866,054,530.80, 1,299,081,796.20 and 815,036,194.80

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Solution

The fourth proportional to 866,054,530.80, 1,299,081,796.20 and 815,036,194.80 is: 1,222,554,292.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,054,530.80 : 1,299,081,796.20 = 815,036,194.80 : x
  2. Step 2: Convert to fraction form
    866,054,530.80/1,299,081,796.20 = 815,036,194.80/x
  3. Step 3: Cross multiply
    866,054,530.80x = 1,299,081,796.20 × 815,036,194.80
  4. Step 4: Simplify right side
    866,054,530.80x = 1,058,798,683,908,797,056
  5. Step 5: Solve for x
    x = 1,058,798,683,908,797,056/866,054,530.80
  6. Step 6: Final answer
    x = 1,222,554,292.20

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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.