Home / 252,660,679.20-378,991,018.80-154,450,382.40

Finding the Fourth Proportional to 252,660,679.20, 378,991,018.80 and 154,450,382.40

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Solution

The fourth proportional to 252,660,679.20, 378,991,018.80 and 154,450,382.40 is: 231,675,573.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,660,679.20 : 378,991,018.80 = 154,450,382.40 : x
  2. Step 2: Convert to fraction form
    252,660,679.20/378,991,018.80 = 154,450,382.40/x
  3. Step 3: Cross multiply
    252,660,679.20x = 378,991,018.80 × 154,450,382.40
  4. Step 4: Simplify right side
    252,660,679.20x = 58,535,307,779,825,592
  5. Step 5: Solve for x
    x = 58,535,307,779,825,592/252,660,679.20
  6. Step 6: Final answer
    x = 231,675,573.60

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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.