Home / 9,768,519.45-13,478,398.17-5,637,672.84

Finding the Fourth Proportional to 9,768,519.45, 13,478,398.17 and 5,637,672.84

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Solution

The fourth proportional to 9,768,519.45, 13,478,398.17 and 5,637,672.84 is: 7,778,742.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,768,519.45 : 13,478,398.17 = 5,637,672.84 : x
  2. Step 2: Convert to fraction form
    9,768,519.45/13,478,398.17 = 5,637,672.84/x
  3. Step 3: Cross multiply
    9,768,519.45x = 13,478,398.17 × 5,637,672.84
  4. Step 4: Simplify right side
    9,768,519.45x = 75,986,799,289,714.70
  5. Step 5: Solve for x
    x = 75,986,799,289,714.70/9,768,519.45
  6. Step 6: Final answer
    x = 7,778,742.69

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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.