Home / 121,303,863.12-181,770,642.03-72,022,671.84

Finding the Fourth Proportional to 121,303,863.12, 181,770,642.03 and 72,022,671.84

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Solution

The fourth proportional to 121,303,863.12, 181,770,642.03 and 72,022,671.84 is: 107,924,075.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,303,863.12 : 181,770,642.03 = 72,022,671.84 : x
  2. Step 2: Convert to fraction form
    121,303,863.12/181,770,642.03 = 72,022,671.84/x
  3. Step 3: Cross multiply
    121,303,863.12x = 181,770,642.03 × 72,022,671.84
  4. Step 4: Simplify right side
    121,303,863.12x = 13,091,607,301,072,802
  5. Step 5: Solve for x
    x = 13,091,607,301,072,802/121,303,863.12
  6. Step 6: Final answer
    x = 107,924,075.66

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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.