Home / 402,268,145.70-603,402,218.55-143,775,243.30

Finding the Fourth Proportional to 402,268,145.70, 603,402,218.55 and 143,775,243.30

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Solution

The fourth proportional to 402,268,145.70, 603,402,218.55 and 143,775,243.30 is: 215,662,864.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,268,145.70 : 603,402,218.55 = 143,775,243.30 : x
  2. Step 2: Convert to fraction form
    402,268,145.70/603,402,218.55 = 143,775,243.30/x
  3. Step 3: Cross multiply
    402,268,145.70x = 603,402,218.55 × 143,775,243.30
  4. Step 4: Simplify right side
    402,268,145.70x = 86,754,300,779,786,016
  5. Step 5: Solve for x
    x = 86,754,300,779,786,016/402,268,145.70
  6. Step 6: Final answer
    x = 215,662,864.95

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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.