Home / 28,139,812.80-42,209,719.20-26,572,171.20

Finding the Fourth Proportional to 28,139,812.80, 42,209,719.20 and 26,572,171.20

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Solution

The fourth proportional to 28,139,812.80, 42,209,719.20 and 26,572,171.20 is: 39,858,256.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139,812.80 : 42,209,719.20 = 26,572,171.20 : x
  2. Step 2: Convert to fraction form
    28,139,812.80/42,209,719.20 = 26,572,171.20/x
  3. Step 3: Cross multiply
    28,139,812.80x = 42,209,719.20 × 26,572,171.20
  4. Step 4: Simplify right side
    28,139,812.80x = 1,121,603,884,886,327.12
  5. Step 5: Solve for x
    x = 1,121,603,884,886,327.12/28,139,812.80
  6. Step 6: Final answer
    x = 39,858,256.80

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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.