Home / 323,607,655.81-485,358,339.59-139,325,519.08

Finding the Fourth Proportional to 323,607,655.81, 485,358,339.59 and 139,325,519.08

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Solution

The fourth proportional to 323,607,655.81, 485,358,339.59 and 139,325,519.08 is: 208,965,398.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,607,655.81 : 485,358,339.59 = 139,325,519.08 : x
  2. Step 2: Convert to fraction form
    323,607,655.81/485,358,339.59 = 139,325,519.08/x
  3. Step 3: Cross multiply
    323,607,655.81x = 485,358,339.59 × 139,325,519.08
  4. Step 4: Simplify right side
    323,607,655.81x = 67,622,802,600,060,240
  5. Step 5: Solve for x
    x = 67,622,802,600,060,240/323,607,655.81
  6. Step 6: Final answer
    x = 208,965,398.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.