Home / 142,015,220.70-213,022,831.05-103,751,468.70

Finding the Fourth Proportional to 142,015,220.70, 213,022,831.05 and 103,751,468.70

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Solution

The fourth proportional to 142,015,220.70, 213,022,831.05 and 103,751,468.70 is: 155,627,203.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,015,220.70 : 213,022,831.05 = 103,751,468.70 : x
  2. Step 2: Convert to fraction form
    142,015,220.70/213,022,831.05 = 103,751,468.70/x
  3. Step 3: Cross multiply
    142,015,220.70x = 213,022,831.05 × 103,751,468.70
  4. Step 4: Simplify right side
    142,015,220.70x = 22,101,431,588,069,464
  5. Step 5: Solve for x
    x = 22,101,431,588,069,464/142,015,220.70
  6. Step 6: Final answer
    x = 155,627,203.05

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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.