Home / 1,112,251,687.60-1,669,133,358.60-620,964,007.60

Finding the Fourth Proportional to 1,112,251,687.60, 1,669,133,358.60 and 620,964,007.60

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Solution

The fourth proportional to 1,112,251,687.60, 1,669,133,358.60 and 620,964,007.60 is: 931,867,985.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,251,687.60 : 1,669,133,358.60 = 620,964,007.60 : x
  2. Step 2: Convert to fraction form
    1,112,251,687.60/1,669,133,358.60 = 620,964,007.60/x
  3. Step 3: Cross multiply
    1,112,251,687.60x = 1,669,133,358.60 × 620,964,007.60
  4. Step 4: Simplify right side
    1,112,251,687.60x = 1,036,471,739,575,103,872
  5. Step 5: Solve for x
    x = 1,036,471,739,575,103,872/1,112,251,687.60
  6. Step 6: Final answer
    x = 931,867,985.57

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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.