Home / 123,811,333.20-185,716,999.80-121,898,145.60

Finding the Fourth Proportional to 123,811,333.20, 185,716,999.80 and 121,898,145.60

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Solution

The fourth proportional to 123,811,333.20, 185,716,999.80 and 121,898,145.60 is: 182,847,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,811,333.20 : 185,716,999.80 = 121,898,145.60 : x
  2. Step 2: Convert to fraction form
    123,811,333.20/185,716,999.80 = 121,898,145.60/x
  3. Step 3: Cross multiply
    123,811,333.20x = 185,716,999.80 × 121,898,145.60
  4. Step 4: Simplify right side
    123,811,333.20x = 22,638,557,882,015,572
  5. Step 5: Solve for x
    x = 22,638,557,882,015,572/123,811,333.20
  6. Step 6: Final answer
    x = 182,847,218.40

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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.