Home / 282,806,638.87-424,271,016.78-86,085,435.12

Finding the Fourth Proportional to 282,806,638.87, 424,271,016.78 and 86,085,435.12

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Solution

The fourth proportional to 282,806,638.87, 424,271,016.78 and 86,085,435.12 is: 129,146,738.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,806,638.87 : 424,271,016.78 = 86,085,435.12 : x
  2. Step 2: Convert to fraction form
    282,806,638.87/424,271,016.78 = 86,085,435.12/x
  3. Step 3: Cross multiply
    282,806,638.87x = 424,271,016.78 × 86,085,435.12
  4. Step 4: Simplify right side
    282,806,638.87x = 36,523,555,088,311,120
  5. Step 5: Solve for x
    x = 36,523,555,088,311,120/282,806,638.87
  6. Step 6: Final answer
    x = 129,146,738.68

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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.