Home / 78,388,461.06-108,178,858.52-43,108,948.43

Finding the Fourth Proportional to 78,388,461.06, 108,178,858.52 and 43,108,948.43

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Solution

The fourth proportional to 78,388,461.06, 108,178,858.52 and 43,108,948.43 is: 59,491,878.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,388,461.06 : 108,178,858.52 = 43,108,948.43 : x
  2. Step 2: Convert to fraction form
    78,388,461.06/108,178,858.52 = 43,108,948.43/x
  3. Step 3: Cross multiply
    78,388,461.06x = 108,178,858.52 × 43,108,948.43
  4. Step 4: Simplify right side
    78,388,461.06x = 4,663,476,832,398,507
  5. Step 5: Solve for x
    x = 4,663,476,832,398,507/78,388,461.06
  6. Step 6: Final answer
    x = 59,491,878.90

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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.