Home / 78,414,864.40-117,622,296.60-52,586,831.80

Finding the Fourth Proportional to 78,414,864.40, 117,622,296.60 and 52,586,831.80

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Solution

The fourth proportional to 78,414,864.40, 117,622,296.60 and 52,586,831.80 is: 78,880,247.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,414,864.40 : 117,622,296.60 = 52,586,831.80 : x
  2. Step 2: Convert to fraction form
    78,414,864.40/117,622,296.60 = 52,586,831.80/x
  3. Step 3: Cross multiply
    78,414,864.40x = 117,622,296.60 × 52,586,831.80
  4. Step 4: Simplify right side
    78,414,864.40x = 6,185,383,927,233,911
  5. Step 5: Solve for x
    x = 6,185,383,927,233,911/78,414,864.40
  6. Step 6: Final answer
    x = 78,880,247.70

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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.