Home / 816,844,643.70-1,225,266,965.55-203,428,869.45

Finding the Fourth Proportional to 816,844,643.70, 1,225,266,965.55 and 203,428,869.45

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Solution

The fourth proportional to 816,844,643.70, 1,225,266,965.55 and 203,428,869.45 is: 305,143,304.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,844,643.70 : 1,225,266,965.55 = 203,428,869.45 : x
  2. Step 2: Convert to fraction form
    816,844,643.70/1,225,266,965.55 = 203,428,869.45/x
  3. Step 3: Cross multiply
    816,844,643.70x = 1,225,266,965.55 × 203,428,869.45
  4. Step 4: Simplify right side
    816,844,643.70x = 249,254,673,576,268,576
  5. Step 5: Solve for x
    x = 249,254,673,576,268,576/816,844,643.70
  6. Step 6: Final answer
    x = 305,143,304.18

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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.