Home / 1,320,148,578.94-1,821,819,539.10-725,433,217.03

Finding the Fourth Proportional to 1,320,148,578.94, 1,821,819,539.10 and 725,433,217.03

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Solution

The fourth proportional to 1,320,148,578.94, 1,821,819,539.10 and 725,433,217.03 is: 1,001,105,807.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,148,578.94 : 1,821,819,539.10 = 725,433,217.03 : x
  2. Step 2: Convert to fraction form
    1,320,148,578.94/1,821,819,539.10 = 725,433,217.03/x
  3. Step 3: Cross multiply
    1,320,148,578.94x = 1,821,819,539.10 × 725,433,217.03
  4. Step 4: Simplify right side
    1,320,148,578.94x = 1,321,608,409,095,791,616
  5. Step 5: Solve for x
    x = 1,321,608,409,095,791,616/1,320,148,578.94
  6. Step 6: Final answer
    x = 1,001,105,807.47

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Double scale
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1.5x scale

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.