Home / 21,438,039.90-32,157,059.85-18,355,682.10

Finding the Fourth Proportional to 21,438,039.90, 32,157,059.85 and 18,355,682.10

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Solution

The fourth proportional to 21,438,039.90, 32,157,059.85 and 18,355,682.10 is: 27,533,523.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438,039.90 : 32,157,059.85 = 18,355,682.10 : x
  2. Step 2: Convert to fraction form
    21,438,039.90/32,157,059.85 = 18,355,682.10/x
  3. Step 3: Cross multiply
    21,438,039.90x = 32,157,059.85 × 18,355,682.10
  4. Step 4: Simplify right side
    21,438,039.90x = 590,264,767,877,273.75
  5. Step 5: Solve for x
    x = 590,264,767,877,273.75/21,438,039.90
  6. Step 6: Final answer
    x = 27,533,523.15

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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.