Home / 56,894,634.69-78,514,791.27-30,789,145.60

Finding the Fourth Proportional to 56,894,634.69, 78,514,791.27 and 30,789,145.60

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Solution

The fourth proportional to 56,894,634.69, 78,514,791.27 and 30,789,145.60 is: 42,489,126.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,894,634.69 : 78,514,791.27 = 30,789,145.60 : x
  2. Step 2: Convert to fraction form
    56,894,634.69/78,514,791.27 = 30,789,145.60/x
  3. Step 3: Cross multiply
    56,894,634.69x = 78,514,791.27 × 30,789,145.60
  4. Step 4: Simplify right side
    56,894,634.69x = 2,417,403,340,165,639
  5. Step 5: Solve for x
    x = 2,417,403,340,165,639/56,894,634.69
  6. Step 6: Final answer
    x = 42,489,126.67

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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.