Home / 28,551,231.81-39,400,749.90-15,498,499.59

Finding the Fourth Proportional to 28,551,231.81, 39,400,749.90 and 15,498,499.59

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Solution

The fourth proportional to 28,551,231.81, 39,400,749.90 and 15,498,499.59 is: 21,387,956.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551,231.81 : 39,400,749.90 = 15,498,499.59 : x
  2. Step 2: Convert to fraction form
    28,551,231.81/39,400,749.90 = 15,498,499.59/x
  3. Step 3: Cross multiply
    28,551,231.81x = 39,400,749.90 × 15,498,499.59
  4. Step 4: Simplify right side
    28,551,231.81x = 610,652,506,170,842.50
  5. Step 5: Solve for x
    x = 610,652,506,170,842.50/28,551,231.81
  6. Step 6: Final answer
    x = 21,387,956.58

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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.