Home / 87,403,804.10-131,105,706.15-83,671,907.30

Finding the Fourth Proportional to 87,403,804.10, 131,105,706.15 and 83,671,907.30

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Solution

The fourth proportional to 87,403,804.10, 131,105,706.15 and 83,671,907.30 is: 125,507,860.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,403,804.10 : 131,105,706.15 = 83,671,907.30 : x
  2. Step 2: Convert to fraction form
    87,403,804.10/131,105,706.15 = 83,671,907.30/x
  3. Step 3: Cross multiply
    87,403,804.10x = 131,105,706.15 × 83,671,907.30
  4. Step 4: Simplify right side
    87,403,804.10x = 10,969,864,491,483,840
  5. Step 5: Solve for x
    x = 10,969,864,491,483,840/87,403,804.10
  6. Step 6: Final answer
    x = 125,507,860.95

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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.