Home / 21,492,099.70-32,238,149.55-18,692,739.70

Finding the Fourth Proportional to 21,492,099.70, 32,238,149.55 and 18,692,739.70

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Solution

The fourth proportional to 21,492,099.70, 32,238,149.55 and 18,692,739.70 is: 28,039,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,492,099.70 : 32,238,149.55 = 18,692,739.70 : x
  2. Step 2: Convert to fraction form
    21,492,099.70/32,238,149.55 = 18,692,739.70/x
  3. Step 3: Cross multiply
    21,492,099.70x = 32,238,149.55 × 18,692,739.70
  4. Step 4: Simplify right side
    21,492,099.70x = 602,619,337,947,822.12
  5. Step 5: Solve for x
    x = 602,619,337,947,822.12/21,492,099.70
  6. Step 6: Final answer
    x = 28,039,109.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.