Home / 39,156,571,005.06-54,036,075,758.49-21,335,228,504.58

Finding the Fourth Proportional to 39,156,571,005.06, 54,036,075,758.49 and 21,335,228,504.58

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Solution

The fourth proportional to 39,156,571,005.06, 54,036,075,758.49 and 21,335,228,504.58 is: 29,442,619,570.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,156,571,005.06 : 54,036,075,758.49 = 21,335,228,504.58 : x
  2. Step 2: Convert to fraction form
    39,156,571,005.06/54,036,075,758.49 = 21,335,228,504.58/x
  3. Step 3: Cross multiply
    39,156,571,005.06x = 54,036,075,758.49 × 21,335,228,504.58
  4. Step 4: Simplify right side
    39,156,571,005.06x = 1,152,872,023,798,180,216,832
  5. Step 5: Solve for x
    x = 1,152,872,023,798,180,216,832/39,156,571,005.06
  6. Step 6: Final answer
    x = 29,442,619,570.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.