Home / 189,283,418.80-283,925,128.20-121,258,970.80

Finding the Fourth Proportional to 189,283,418.80, 283,925,128.20 and 121,258,970.80

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Solution

The fourth proportional to 189,283,418.80, 283,925,128.20 and 121,258,970.80 is: 181,888,456.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,283,418.80 : 283,925,128.20 = 121,258,970.80 : x
  2. Step 2: Convert to fraction form
    189,283,418.80/283,925,128.20 = 121,258,970.80/x
  3. Step 3: Cross multiply
    189,283,418.80x = 283,925,128.20 × 121,258,970.80
  4. Step 4: Simplify right side
    189,283,418.80x = 34,428,468,829,790,056
  5. Step 5: Solve for x
    x = 34,428,468,829,790,056/189,283,418.80
  6. Step 6: Final answer
    x = 181,888,456.20

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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.