Home / 78,386,260.41-108,173,459.61-43,106,339.43

Finding the Fourth Proportional to 78,386,260.41, 108,173,459.61 and 43,106,339.43

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Solution

The fourth proportional to 78,386,260.41, 108,173,459.61 and 43,106,339.43 is: 59,486,979.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,386,260.41 : 108,173,459.61 = 43,106,339.43 : x
  2. Step 2: Convert to fraction form
    78,386,260.41/108,173,459.61 = 43,106,339.43/x
  3. Step 3: Cross multiply
    78,386,260.41x = 108,173,459.61 × 43,106,339.43
  4. Step 4: Simplify right side
    78,386,260.41x = 4,662,961,867,266,055
  5. Step 5: Solve for x
    x = 4,662,961,867,266,055/78,386,260.41
  6. Step 6: Final answer
    x = 59,486,979.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.