Home / 256,782,713.63-354,360,831.66-139,308,043.86

Finding the Fourth Proportional to 256,782,713.63, 354,360,831.66 and 139,308,043.86

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Solution

The fourth proportional to 256,782,713.63, 354,360,831.66 and 139,308,043.86 is: 192,245,473.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,782,713.63 : 354,360,831.66 = 139,308,043.86 : x
  2. Step 2: Convert to fraction form
    256,782,713.63/354,360,831.66 = 139,308,043.86/x
  3. Step 3: Cross multiply
    256,782,713.63x = 354,360,831.66 × 139,308,043.86
  4. Step 4: Simplify right side
    256,782,713.63x = 49,365,314,279,157,368
  5. Step 5: Solve for x
    x = 49,365,314,279,157,368/256,782,713.63
  6. Step 6: Final answer
    x = 192,245,473.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.