Home / 525,649,933.12-725,177,721.36-302,578,240

Finding the Fourth Proportional to 525,649,933.12, 725,177,721.36 and 302,578,240

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Solution

The fourth proportional to 525,649,933.12, 725,177,721.36 and 302,578,240 is: 417,431,801.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,649,933.12 : 725,177,721.36 = 302,578,240 : x
  2. Step 2: Convert to fraction form
    525,649,933.12/725,177,721.36 = 302,578,240/x
  3. Step 3: Cross multiply
    525,649,933.12x = 725,177,721.36 × 302,578,240
  4. Step 4: Simplify right side
    525,649,933.12x = 219,422,998,616,319,200
  5. Step 5: Solve for x
    x = 219,422,998,616,319,200/525,649,933.12
  6. Step 6: Final answer
    x = 417,431,801.64

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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.