Home / 215,646,026.10-323,469,039.15-86,346,430.80

Finding the Fourth Proportional to 215,646,026.10, 323,469,039.15 and 86,346,430.80

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Solution

The fourth proportional to 215,646,026.10, 323,469,039.15 and 86,346,430.80 is: 129,519,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,646,026.10 : 323,469,039.15 = 86,346,430.80 : x
  2. Step 2: Convert to fraction form
    215,646,026.10/323,469,039.15 = 86,346,430.80/x
  3. Step 3: Cross multiply
    215,646,026.10x = 323,469,039.15 × 86,346,430.80
  4. Step 4: Simplify right side
    215,646,026.10x = 27,930,397,004,907,964
  5. Step 5: Solve for x
    x = 27,930,397,004,907,964/215,646,026.10
  6. Step 6: Final answer
    x = 129,519,646.20

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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.