Home / 205,879,863.40-308,819,795.10-69,563,278.60

Finding the Fourth Proportional to 205,879,863.40, 308,819,795.10 and 69,563,278.60

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Solution

The fourth proportional to 205,879,863.40, 308,819,795.10 and 69,563,278.60 is: 104,344,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,879,863.40 : 308,819,795.10 = 69,563,278.60 : x
  2. Step 2: Convert to fraction form
    205,879,863.40/308,819,795.10 = 69,563,278.60/x
  3. Step 3: Cross multiply
    205,879,863.40x = 308,819,795.10 × 69,563,278.60
  4. Step 4: Simplify right side
    205,879,863.40x = 21,482,517,443,736,216
  5. Step 5: Solve for x
    x = 21,482,517,443,736,216/205,879,863.40
  6. Step 6: Final answer
    x = 104,344,917.90

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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.