Home / 12,545,886.21-17,313,621.45-7,039,668.36

Finding the Fourth Proportional to 12,545,886.21, 17,313,621.45 and 7,039,668.36

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Solution

The fourth proportional to 12,545,886.21, 17,313,621.45 and 7,039,668.36 is: 9,714,909.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545,886.21 : 17,313,621.45 = 7,039,668.36 : x
  2. Step 2: Convert to fraction form
    12,545,886.21/17,313,621.45 = 7,039,668.36/x
  3. Step 3: Cross multiply
    12,545,886.21x = 17,313,621.45 × 7,039,668.36
  4. Step 4: Simplify right side
    12,545,886.21x = 121,882,153,118,582.33
  5. Step 5: Solve for x
    x = 121,882,153,118,582.33/12,545,886.21
  6. Step 6: Final answer
    x = 9,714,909.82

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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.