Home / 28,083,147.60-42,112,279.80-12,941,720.40

Finding the Fourth Proportional to 28,083,147.60, 42,112,279.80 and 12,941,720.40

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Solution

The fourth proportional to 28,083,147.60, 42,112,279.80 and 12,941,720.40 is: 19,406,847.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083,147.60 : 42,112,279.80 = 12,941,720.40 : x
  2. Step 2: Convert to fraction form
    28,083,147.60/42,112,279.80 = 12,941,720.40/x
  3. Step 3: Cross multiply
    28,083,147.60x = 42,112,279.80 × 12,941,720.40
  4. Step 4: Simplify right side
    28,083,147.60x = 545,005,350,578,167.88
  5. Step 5: Solve for x
    x = 545,005,350,578,167.88/28,083,147.60
  6. Step 6: Final answer
    x = 19,406,847.07

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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.