Home / 28,083,140.10-42,112,268.55-12,941,712.90

Finding the Fourth Proportional to 28,083,140.10, 42,112,268.55 and 12,941,712.90

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Solution

The fourth proportional to 28,083,140.10, 42,112,268.55 and 12,941,712.90 is: 19,406,835.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083,140.10 : 42,112,268.55 = 12,941,712.90 : x
  2. Step 2: Convert to fraction form
    28,083,140.10/42,112,268.55 = 12,941,712.90/x
  3. Step 3: Cross multiply
    28,083,140.10x = 42,112,268.55 × 12,941,712.90
  4. Step 4: Simplify right side
    28,083,140.10x = 545,004,889,141,799.25
  5. Step 5: Solve for x
    x = 545,004,889,141,799.25/28,083,140.10
  6. Step 6: Final answer
    x = 19,406,835.82

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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.