Home / 28,083,135.10-42,112,261.05-12,941,707.90

Finding the Fourth Proportional to 28,083,135.10, 42,112,261.05 and 12,941,707.90

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Solution

The fourth proportional to 28,083,135.10, 42,112,261.05 and 12,941,707.90 is: 19,406,828.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083,135.10 : 42,112,261.05 = 12,941,707.90 : x
  2. Step 2: Convert to fraction form
    28,083,135.10/42,112,261.05 = 12,941,707.90/x
  3. Step 3: Cross multiply
    28,083,135.10x = 42,112,261.05 × 12,941,707.90
  4. Step 4: Simplify right side
    28,083,135.10x = 545,004,581,517,647.25
  5. Step 5: Solve for x
    x = 545,004,581,517,647.25/28,083,135.10
  6. Step 6: Final answer
    x = 19,406,828.32

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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.