Home / 121,393,085.70-182,089,628.55-108,638,501.70

Finding the Fourth Proportional to 121,393,085.70, 182,089,628.55 and 108,638,501.70

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Solution

The fourth proportional to 121,393,085.70, 182,089,628.55 and 108,638,501.70 is: 162,957,752.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,393,085.70 : 182,089,628.55 = 108,638,501.70 : x
  2. Step 2: Convert to fraction form
    121,393,085.70/182,089,628.55 = 108,638,501.70/x
  3. Step 3: Cross multiply
    121,393,085.70x = 182,089,628.55 × 108,638,501.70
  4. Step 4: Simplify right side
    121,393,085.70x = 19,781,944,420,781,544
  5. Step 5: Solve for x
    x = 19,781,944,420,781,544/121,393,085.70
  6. Step 6: Final answer
    x = 162,957,752.55

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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.