Home / 92,910,568.88-128,209,929.50-51,097,578.32

Finding the Fourth Proportional to 92,910,568.88, 128,209,929.50 and 51,097,578.32

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Solution

The fourth proportional to 92,910,568.88, 128,209,929.50 and 51,097,578.32 is: 70,510,997.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,910,568.88 : 128,209,929.50 = 51,097,578.32 : x
  2. Step 2: Convert to fraction form
    92,910,568.88/128,209,929.50 = 51,097,578.32/x
  3. Step 3: Cross multiply
    92,910,568.88x = 128,209,929.50 × 51,097,578.32
  4. Step 4: Simplify right side
    92,910,568.88x = 6,551,216,914,476,197
  5. Step 5: Solve for x
    x = 6,551,216,914,476,197/92,910,568.88
  6. Step 6: Final answer
    x = 70,510,997.76

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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.