Home / 149,638,073,048.88-206,498,895,716.88-81,047,779,885.32

Finding the Fourth Proportional to 149,638,073,048.88, 206,498,895,716.88 and 81,047,779,885.32

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Solution

The fourth proportional to 149,638,073,048.88, 206,498,895,716.88 and 81,047,779,885.32 is: 111,845,045,218.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,638,073,048.88 : 206,498,895,716.88 = 81,047,779,885.32 : x
  2. Step 2: Convert to fraction form
    149,638,073,048.88/206,498,895,716.88 = 81,047,779,885.32/x
  3. Step 3: Cross multiply
    149,638,073,048.88x = 206,498,895,716.88 × 81,047,779,885.32
  4. Step 4: Simplify right side
    149,638,073,048.88x = 16,736,277,046,623,341,641,728
  5. Step 5: Solve for x
    x = 16,736,277,046,623,341,641,728/149,638,073,048.88
  6. Step 6: Final answer
    x = 111,845,045,218.92

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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.