Home / 138,716,403.20-208,011,619.20-52,426,131.20

Finding the Fourth Proportional to 138,716,403.20, 208,011,619.20 and 52,426,131.20

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Solution

The fourth proportional to 138,716,403.20, 208,011,619.20 and 52,426,131.20 is: 78,615,392.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,716,403.20 : 208,011,619.20 = 52,426,131.20 : x
  2. Step 2: Convert to fraction form
    138,716,403.20/208,011,619.20 = 52,426,131.20/x
  3. Step 3: Cross multiply
    138,716,403.20x = 208,011,619.20 × 52,426,131.20
  4. Step 4: Simplify right side
    138,716,403.20x = 10,905,244,439,303,640
  5. Step 5: Solve for x
    x = 10,905,244,439,303,640/138,716,403.20
  6. Step 6: Final answer
    x = 78,615,392.18

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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.