Home / 2,680,521,638.40-4,021,160,371.20-840,082,406.40

Finding the Fourth Proportional to 2,680,521,638.40, 4,021,160,371.20 and 840,082,406.40

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Solution

The fourth proportional to 2,680,521,638.40, 4,021,160,371.20 and 840,082,406.40 is: 1,260,242,048.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680,521,638.40 : 4,021,160,371.20 = 840,082,406.40 : x
  2. Step 2: Convert to fraction form
    2,680,521,638.40/4,021,160,371.20 = 840,082,406.40/x
  3. Step 3: Cross multiply
    2,680,521,638.40x = 4,021,160,371.20 × 840,082,406.40
  4. Step 4: Simplify right side
    2,680,521,638.40x = 3,378,106,081,158,012,928
  5. Step 5: Solve for x
    x = 3,378,106,081,158,012,928/2,680,521,638.40
  6. Step 6: Final answer
    x = 1,260,242,048.70

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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.