Home / 28,425,364.21-39,227,120-15,372,622.86

Finding the Fourth Proportional to 28,425,364.21, 39,227,120 and 15,372,622.86

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Solution

The fourth proportional to 28,425,364.21, 39,227,120 and 15,372,622.86 is: 21,214,283.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,425,364.21 : 39,227,120 = 15,372,622.86 : x
  2. Step 2: Convert to fraction form
    28,425,364.21/39,227,120 = 15,372,622.86/x
  3. Step 3: Cross multiply
    28,425,364.21x = 39,227,120 × 15,372,622.86
  4. Step 4: Simplify right side
    28,425,364.21x = 603,023,721,643,963.12
  5. Step 5: Solve for x
    x = 603,023,721,643,963.12/28,425,364.21
  6. Step 6: Final answer
    x = 21,214,283.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.