Home / 1,198,119,578.27-1,653,569,267.54-689,471,838.27

Finding the Fourth Proportional to 1,198,119,578.27, 1,653,569,267.54 and 689,471,838.27

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Solution

The fourth proportional to 1,198,119,578.27, 1,653,569,267.54 and 689,471,838.27 is: 951,565,656.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,119,578.27 : 1,653,569,267.54 = 689,471,838.27 : x
  2. Step 2: Convert to fraction form
    1,198,119,578.27/1,653,569,267.54 = 689,471,838.27/x
  3. Step 3: Cross multiply
    1,198,119,578.27x = 1,653,569,267.54 × 689,471,838.27
  4. Step 4: Simplify right side
    1,198,119,578.27x = 1,140,089,442,594,133,888
  5. Step 5: Solve for x
    x = 1,140,089,442,594,133,888/1,198,119,578.27
  6. Step 6: Final answer
    x = 951,565,656.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.