Home / 12,782,627.51-17,640,407.96-6,981,682.91

Finding the Fourth Proportional to 12,782,627.51, 17,640,407.96 and 6,981,682.91

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Solution

The fourth proportional to 12,782,627.51, 17,640,407.96 and 6,981,682.91 is: 9,634,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,782,627.51 : 17,640,407.96 = 6,981,682.91 : x
  2. Step 2: Convert to fraction form
    12,782,627.51/17,640,407.96 = 6,981,682.91/x
  3. Step 3: Cross multiply
    12,782,627.51x = 17,640,407.96 × 6,981,682.91
  4. Step 4: Simplify right side
    12,782,627.51x = 123,159,734,709,012.12
  5. Step 5: Solve for x
    x = 123,159,734,709,012.12/12,782,627.51
  6. Step 6: Final answer
    x = 9,634,931.05

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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.