Home / 1,121,410,824.30-1,547,619,825.87-619,619,668.56

Finding the Fourth Proportional to 1,121,410,824.30, 1,547,619,825.87 and 619,619,668.56

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Solution

The fourth proportional to 1,121,410,824.30, 1,547,619,825.87 and 619,619,668.56 is: 855,115,416.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,410,824.30 : 1,547,619,825.87 = 619,619,668.56 : x
  2. Step 2: Convert to fraction form
    1,121,410,824.30/1,547,619,825.87 = 619,619,668.56/x
  3. Step 3: Cross multiply
    1,121,410,824.30x = 1,547,619,825.87 × 619,619,668.56
  4. Step 4: Simplify right side
    1,121,410,824.30x = 958,935,683,562,454,144
  5. Step 5: Solve for x
    x = 958,935,683,562,454,144/1,121,410,824.30
  6. Step 6: Final answer
    x = 855,115,416.03

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Double scale
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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.