Home / 290,020,344.23-435,026,256.86-71,670,680.44

Finding the Fourth Proportional to 290,020,344.23, 435,026,256.86 and 71,670,680.44

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Solution

The fourth proportional to 290,020,344.23, 435,026,256.86 and 71,670,680.44 is: 107,504,968.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,020,344.23 : 435,026,256.86 = 71,670,680.44 : x
  2. Step 2: Convert to fraction form
    290,020,344.23/435,026,256.86 = 71,670,680.44/x
  3. Step 3: Cross multiply
    290,020,344.23x = 435,026,256.86 × 71,670,680.44
  4. Step 4: Simplify right side
    290,020,344.23x = 31,178,627,837,514,028
  5. Step 5: Solve for x
    x = 31,178,627,837,514,028/290,020,344.23
  6. Step 6: Final answer
    x = 107,504,968.04

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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.