Home / 1,171,448,895.10-1,616,595,039.06-642,821,725.78

Finding the Fourth Proportional to 1,171,448,895.10, 1,616,595,039.06 and 642,821,725.78

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Solution

The fourth proportional to 1,171,448,895.10, 1,616,595,039.06 and 642,821,725.78 is: 887,091,547.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,448,895.10 : 1,616,595,039.06 = 642,821,725.78 : x
  2. Step 2: Convert to fraction form
    1,171,448,895.10/1,616,595,039.06 = 642,821,725.78/x
  3. Step 3: Cross multiply
    1,171,448,895.10x = 1,616,595,039.06 × 642,821,725.78
  4. Step 4: Simplify right side
    1,171,448,895.10x = 1,039,182,412,895,935,616
  5. Step 5: Solve for x
    x = 1,039,182,412,895,935,616/1,171,448,895.10
  6. Step 6: Final answer
    x = 887,091,547.26

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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.