Home / 914,727,388.68-1,262,321,048.16-497,040,948.36

Finding the Fourth Proportional to 914,727,388.68, 1,262,321,048.16 and 497,040,948.36

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Solution

The fourth proportional to 914,727,388.68, 1,262,321,048.16 and 497,040,948.36 is: 685,915,015.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,727,388.68 : 1,262,321,048.16 = 497,040,948.36 : x
  2. Step 2: Convert to fraction form
    914,727,388.68/1,262,321,048.16 = 497,040,948.36/x
  3. Step 3: Cross multiply
    914,727,388.68x = 1,262,321,048.16 × 497,040,948.36
  4. Step 4: Simplify right side
    914,727,388.68x = 627,425,250,912,235,648
  5. Step 5: Solve for x
    x = 627,425,250,912,235,648/914,727,388.68
  6. Step 6: Final answer
    x = 685,915,015.42

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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.