Home / 852,110,831.20-1,278,166,246.80-438,862,309.60

Finding the Fourth Proportional to 852,110,831.20, 1,278,166,246.80 and 438,862,309.60

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Solution

The fourth proportional to 852,110,831.20, 1,278,166,246.80 and 438,862,309.60 is: 658,293,464.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,110,831.20 : 1,278,166,246.80 = 438,862,309.60 : x
  2. Step 2: Convert to fraction form
    852,110,831.20/1,278,166,246.80 = 438,862,309.60/x
  3. Step 3: Cross multiply
    852,110,831.20x = 1,278,166,246.80 × 438,862,309.60
  4. Step 4: Simplify right side
    852,110,831.20x = 560,938,991,123,411,648
  5. Step 5: Solve for x
    x = 560,938,991,123,411,648/852,110,831.20
  6. Step 6: Final answer
    x = 658,293,464.40

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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.