Home / 30,868,642.31-46,320,899.69-13,829,315.31

Finding the Fourth Proportional to 30,868,642.31, 46,320,899.69 and 13,829,315.31

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Solution

The fourth proportional to 30,868,642.31, 46,320,899.69 and 13,829,315.31 is: 20,752,008.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,868,642.31 : 46,320,899.69 = 13,829,315.31 : x
  2. Step 2: Convert to fraction form
    30,868,642.31/46,320,899.69 = 13,829,315.31/x
  3. Step 3: Cross multiply
    30,868,642.31x = 46,320,899.69 × 13,829,315.31
  4. Step 4: Simplify right side
    30,868,642.31x = 640,586,327,290,464.62
  5. Step 5: Solve for x
    x = 640,586,327,290,464.62/30,868,642.31
  6. Step 6: Final answer
    x = 20,752,008.49

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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.