Home / 874,012,509.14-1,206,138,559.66-497,669,403.56

Finding the Fourth Proportional to 874,012,509.14, 1,206,138,559.66 and 497,669,403.56

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Solution

The fourth proportional to 874,012,509.14, 1,206,138,559.66 and 497,669,403.56 is: 686,784,515.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,012,509.14 : 1,206,138,559.66 = 497,669,403.56 : x
  2. Step 2: Convert to fraction form
    874,012,509.14/1,206,138,559.66 = 497,669,403.56/x
  3. Step 3: Cross multiply
    874,012,509.14x = 1,206,138,559.66 × 497,669,403.56
  4. Step 4: Simplify right side
    874,012,509.14x = 600,258,257,596,709,760
  5. Step 5: Solve for x
    x = 600,258,257,596,709,760/874,012,509.14
  6. Step 6: Final answer
    x = 686,784,515.46

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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.