Home / 119,755,939.70-179,633,909.55-81,492,187.70

Finding the Fourth Proportional to 119,755,939.70, 179,633,909.55 and 81,492,187.70

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Solution

The fourth proportional to 119,755,939.70, 179,633,909.55 and 81,492,187.70 is: 122,238,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,755,939.70 : 179,633,909.55 = 81,492,187.70 : x
  2. Step 2: Convert to fraction form
    119,755,939.70/179,633,909.55 = 81,492,187.70/x
  3. Step 3: Cross multiply
    119,755,939.70x = 179,633,909.55 × 81,492,187.70
  4. Step 4: Simplify right side
    119,755,939.70x = 14,638,760,274,333,424
  5. Step 5: Solve for x
    x = 14,638,760,274,333,424/119,755,939.70
  6. Step 6: Final answer
    x = 122,238,281.55

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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.