Home / 20,559,844-28,373,206.80-11,391,628.96

Finding the Fourth Proportional to 20,559,844, 28,373,206.80 and 11,391,628.96

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Solution

The fourth proportional to 20,559,844, 28,373,206.80 and 11,391,628.96 is: 15,720,792.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559,844 : 28,373,206.80 = 11,391,628.96 : x
  2. Step 2: Convert to fraction form
    20,559,844/28,373,206.80 = 11,391,628.96/x
  3. Step 3: Cross multiply
    20,559,844x = 28,373,206.80 × 11,391,628.96
  4. Step 4: Simplify right side
    20,559,844x = 323,217,044,270,948.94
  5. Step 5: Solve for x
    x = 323,217,044,270,948.94/20,559,844
  6. Step 6: Final answer
    x = 15,720,792.64

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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.