Home / 1,320,148,776.16-1,821,819,812.17-725,433,414.40

Finding the Fourth Proportional to 1,320,148,776.16, 1,821,819,812.17 and 725,433,414.40

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Solution

The fourth proportional to 1,320,148,776.16, 1,821,819,812.17 and 725,433,414.40 is: 1,001,106,080.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,148,776.16 : 1,821,819,812.17 = 725,433,414.40 : x
  2. Step 2: Convert to fraction form
    1,320,148,776.16/1,821,819,812.17 = 725,433,414.40/x
  3. Step 3: Cross multiply
    1,320,148,776.16x = 1,821,819,812.17 × 725,433,414.40
  4. Step 4: Simplify right side
    1,320,148,776.16x = 1,321,608,966,754,940,672
  5. Step 5: Solve for x
    x = 1,321,608,966,754,940,672/1,320,148,776.16
  6. Step 6: Final answer
    x = 1,001,106,080.33

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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.