Home / 20,716,488.44-28,591,331.54-11,898,701.27

Finding the Fourth Proportional to 20,716,488.44, 28,591,331.54 and 11,898,701.27

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Solution

The fourth proportional to 20,716,488.44, 28,591,331.54 and 11,898,701.27 is: 16,421,688.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716,488.44 : 28,591,331.54 = 11,898,701.27 : x
  2. Step 2: Convert to fraction form
    20,716,488.44/28,591,331.54 = 11,898,701.27/x
  3. Step 3: Cross multiply
    20,716,488.44x = 28,591,331.54 × 11,898,701.27
  4. Step 4: Simplify right side
    20,716,488.44x = 340,199,712,810,756.44
  5. Step 5: Solve for x
    x = 340,199,712,810,756.44/20,716,488.44
  6. Step 6: Final answer
    x = 16,421,688.16

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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.