Home / 889,987,732.20-1,335,548,468.70-521,521,972.20

Finding the Fourth Proportional to 889,987,732.20, 1,335,548,468.70 and 521,521,972.20

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Solution

The fourth proportional to 889,987,732.20, 1,335,548,468.70 and 521,521,972.20 is: 782,615,137.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,987,732.20 : 1,335,548,468.70 = 521,521,972.20 : x
  2. Step 2: Convert to fraction form
    889,987,732.20/1,335,548,468.70 = 521,521,972.20/x
  3. Step 3: Cross multiply
    889,987,732.20x = 1,335,548,468.70 × 521,521,972.20
  4. Step 4: Simplify right side
    889,987,732.20x = 696,517,871,365,113,984
  5. Step 5: Solve for x
    x = 696,517,871,365,113,984/889,987,732.20
  6. Step 6: Final answer
    x = 782,615,137.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.