Home / 775,590,185.32-1,070,644,711.05-521,418,952.10

Finding the Fourth Proportional to 775,590,185.32, 1,070,644,711.05 and 521,418,952.10

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Solution

The fourth proportional to 775,590,185.32, 1,070,644,711.05 and 521,418,952.10 is: 719,780,180.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,590,185.32 : 1,070,644,711.05 = 521,418,952.10 : x
  2. Step 2: Convert to fraction form
    775,590,185.32/1,070,644,711.05 = 521,418,952.10/x
  3. Step 3: Cross multiply
    775,590,185.32x = 1,070,644,711.05 × 521,418,952.10
  4. Step 4: Simplify right side
    775,590,185.32x = 558,254,443,309,774,912
  5. Step 5: Solve for x
    x = 558,254,443,309,774,912/775,590,185.32
  6. Step 6: Final answer
    x = 719,780,180.15

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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.