Home / 1,801,161,871.21-2,698,224,238.33-1,240,824,721.76

Finding the Fourth Proportional to 1,801,161,871.21, 2,698,224,238.33 and 1,240,824,721.76

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Solution

The fourth proportional to 1,801,161,871.21, 2,698,224,238.33 and 1,240,824,721.76 is: 1,858,813,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801,161,871.21 : 2,698,224,238.33 = 1,240,824,721.76 : x
  2. Step 2: Convert to fraction form
    1,801,161,871.21/2,698,224,238.33 = 1,240,824,721.76/x
  3. Step 3: Cross multiply
    1,801,161,871.21x = 2,698,224,238.33 × 1,240,824,721.76
  4. Step 4: Simplify right side
    1,801,161,871.21x = 3,348,023,339,772,248,576
  5. Step 5: Solve for x
    x = 3,348,023,339,772,248,576/1,801,161,871.21
  6. Step 6: Final answer
    x = 1,858,813,132.40

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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.