Home / 149,638,073,048.12-206,498,895,715.85-81,047,779,884.57

Finding the Fourth Proportional to 149,638,073,048.12, 206,498,895,715.85 and 81,047,779,884.57

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Solution

The fourth proportional to 149,638,073,048.12, 206,498,895,715.85 and 81,047,779,884.57 is: 111,845,045,217.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,638,073,048.12 : 206,498,895,715.85 = 81,047,779,884.57 : x
  2. Step 2: Convert to fraction form
    149,638,073,048.12/206,498,895,715.85 = 81,047,779,884.57/x
  3. Step 3: Cross multiply
    149,638,073,048.12x = 206,498,895,715.85 × 81,047,779,884.57
  4. Step 4: Simplify right side
    149,638,073,048.12x = 16,736,277,046,383,953,838,080
  5. Step 5: Solve for x
    x = 16,736,277,046,383,953,838,080/149,638,073,048.12
  6. Step 6: Final answer
    x = 111,845,045,217.88

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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.