Home / 121,640,668.73-167,855,408.20-71,406,927.01

Finding the Fourth Proportional to 121,640,668.73, 167,855,408.20 and 71,406,927.01

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Solution

The fourth proportional to 121,640,668.73, 167,855,408.20 and 71,406,927.01 is: 98,536,443.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,640,668.73 : 167,855,408.20 = 71,406,927.01 : x
  2. Step 2: Convert to fraction form
    121,640,668.73/167,855,408.20 = 71,406,927.01/x
  3. Step 3: Cross multiply
    121,640,668.73x = 167,855,408.20 × 71,406,927.01
  4. Step 4: Simplify right side
    121,640,668.73x = 11,986,038,881,571,156
  5. Step 5: Solve for x
    x = 11,986,038,881,571,156/121,640,668.73
  6. Step 6: Final answer
    x = 98,536,443.50

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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.