Home / 1,680,116,015.40-2,519,418,195.90-644,632,751.40

Finding the Fourth Proportional to 1,680,116,015.40, 2,519,418,195.90 and 644,632,751.40

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Solution

The fourth proportional to 1,680,116,015.40, 2,519,418,195.90 and 644,632,751.40 is: 966,659,128.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,116,015.40 : 2,519,418,195.90 = 644,632,751.40 : x
  2. Step 2: Convert to fraction form
    1,680,116,015.40/2,519,418,195.90 = 644,632,751.40/x
  3. Step 3: Cross multiply
    1,680,116,015.40x = 2,519,418,195.90 × 644,632,751.40
  4. Step 4: Simplify right side
    1,680,116,015.40x = 1,624,099,483,550,241,280
  5. Step 5: Solve for x
    x = 1,624,099,483,550,241,280/1,680,116,015.40
  6. Step 6: Final answer
    x = 966,659,128.69

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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.