Home / 121,640,668.07-167,855,407.29-71,406,926.34

Finding the Fourth Proportional to 121,640,668.07, 167,855,407.29 and 71,406,926.34

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Solution

The fourth proportional to 121,640,668.07, 167,855,407.29 and 71,406,926.34 is: 98,536,442.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,640,668.07 : 167,855,407.29 = 71,406,926.34 : x
  2. Step 2: Convert to fraction form
    121,640,668.07/167,855,407.29 = 71,406,926.34/x
  3. Step 3: Cross multiply
    121,640,668.07x = 167,855,407.29 × 71,406,926.34
  4. Step 4: Simplify right side
    121,640,668.07x = 11,986,038,703,498,272
  5. Step 5: Solve for x
    x = 11,986,038,703,498,272/121,640,668.07
  6. Step 6: Final answer
    x = 98,536,442.57

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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.