Home / 6,139,931.36-8,470,491.37-4,505,498.78

Finding the Fourth Proportional to 6,139,931.36, 8,470,491.37 and 4,505,498.78

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Solution

The fourth proportional to 6,139,931.36, 8,470,491.37 and 4,505,498.78 is: 6,215,670.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139,931.36 : 8,470,491.37 = 4,505,498.78 : x
  2. Step 2: Convert to fraction form
    6,139,931.36/8,470,491.37 = 4,505,498.78/x
  3. Step 3: Cross multiply
    6,139,931.36x = 8,470,491.37 × 4,505,498.78
  4. Step 4: Simplify right side
    6,139,931.36x = 38,163,788,479,919.33
  5. Step 5: Solve for x
    x = 38,163,788,479,919.33/6,139,931.36
  6. Step 6: Final answer
    x = 6,215,670.22

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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.