Home / 131,054,440.81-180,858,971.93-71,519,580.92

Finding the Fourth Proportional to 131,054,440.81, 180,858,971.93 and 71,519,580.92

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Solution

The fourth proportional to 131,054,440.81, 180,858,971.93 and 71,519,580.92 is: 98,699,119.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,054,440.81 : 180,858,971.93 = 71,519,580.92 : x
  2. Step 2: Convert to fraction form
    131,054,440.81/180,858,971.93 = 71,519,580.92/x
  3. Step 3: Cross multiply
    131,054,440.81x = 180,858,971.93 × 71,519,580.92
  4. Step 4: Simplify right side
    131,054,440.81x = 12,934,957,876,793,752
  5. Step 5: Solve for x
    x = 12,934,957,876,793,752/131,054,440.81
  6. Step 6: Final answer
    x = 98,699,119.21

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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.