Home / 103,664,328.74-143,055,831.86-56,621,392.43

Finding the Fourth Proportional to 103,664,328.74, 143,055,831.86 and 56,621,392.43

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Solution

The fourth proportional to 103,664,328.74, 143,055,831.86 and 56,621,392.43 is: 78,137,007.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,664,328.74 : 143,055,831.86 = 56,621,392.43 : x
  2. Step 2: Convert to fraction form
    103,664,328.74/143,055,831.86 = 56,621,392.43/x
  3. Step 3: Cross multiply
    103,664,328.74x = 143,055,831.86 × 56,621,392.43
  4. Step 4: Simplify right side
    103,664,328.74x = 8,100,020,395,079,729
  5. Step 5: Solve for x
    x = 8,100,020,395,079,729/103,664,328.74
  6. Step 6: Final answer
    x = 78,137,007.14

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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.