Home / 205,879,831.40-308,819,747.10-69,563,246.60

Finding the Fourth Proportional to 205,879,831.40, 308,819,747.10 and 69,563,246.60

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Solution

The fourth proportional to 205,879,831.40, 308,819,747.10 and 69,563,246.60 is: 104,344,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,879,831.40 : 308,819,747.10 = 69,563,246.60 : x
  2. Step 2: Convert to fraction form
    205,879,831.40/308,819,747.10 = 69,563,246.60/x
  3. Step 3: Cross multiply
    205,879,831.40x = 308,819,747.10 × 69,563,246.60
  4. Step 4: Simplify right side
    205,879,831.40x = 21,482,504,222,466,936
  5. Step 5: Solve for x
    x = 21,482,504,222,466,936/205,879,831.40
  6. Step 6: Final answer
    x = 104,344,869.90

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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.