Home / 78,755,530.84-108,682,636.64-43,473,345.28

Finding the Fourth Proportional to 78,755,530.84, 108,682,636.64 and 43,473,345.28

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Solution

The fourth proportional to 78,755,530.84, 108,682,636.64 and 43,473,345.28 is: 59,993,218.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,755,530.84 : 108,682,636.64 = 43,473,345.28 : x
  2. Step 2: Convert to fraction form
    78,755,530.84/108,682,636.64 = 43,473,345.28/x
  3. Step 3: Cross multiply
    78,755,530.84x = 108,682,636.64 × 43,473,345.28
  4. Step 4: Simplify right side
    78,755,530.84x = 4,724,797,788,591,499
  5. Step 5: Solve for x
    x = 4,724,797,788,591,499/78,755,530.84
  6. Step 6: Final answer
    x = 59,993,218.74

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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.