Home / 525,851,055-725,695,822.89-290,897,664.66

Finding the Fourth Proportional to 525,851,055, 725,695,822.89 and 290,897,664.66

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Solution

The fourth proportional to 525,851,055, 725,695,822.89 and 290,897,664.66 is: 401,450,597.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,851,055 : 725,695,822.89 = 290,897,664.66 : x
  2. Step 2: Convert to fraction form
    525,851,055/725,695,822.89 = 290,897,664.66/x
  3. Step 3: Cross multiply
    525,851,055x = 725,695,822.89 × 290,897,664.66
  4. Step 4: Simplify right side
    525,851,055x = 211,103,220,132,217,984
  5. Step 5: Solve for x
    x = 211,103,220,132,217,984/525,851,055
  6. Step 6: Final answer
    x = 401,450,597.32

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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.