Home / 20,698,150.10-28,563,638.28-11,406,052.52

Finding the Fourth Proportional to 20,698,150.10, 28,563,638.28 and 11,406,052.52

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Solution

The fourth proportional to 20,698,150.10, 28,563,638.28 and 11,406,052.52 is: 15,740,457.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698,150.10 : 28,563,638.28 = 11,406,052.52 : x
  2. Step 2: Convert to fraction form
    20,698,150.10/28,563,638.28 = 11,406,052.52/x
  3. Step 3: Cross multiply
    20,698,150.10x = 28,563,638.28 × 11,406,052.52
  4. Step 4: Simplify right side
    20,698,150.10x = 325,798,358,383,962.44
  5. Step 5: Solve for x
    x = 325,798,358,383,962.44/20,698,150.10
  6. Step 6: Final answer
    x = 15,740,457.81

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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.