Home / 42,199,893.68-63,299,148.80-13,445,638.64

Finding the Fourth Proportional to 42,199,893.68, 63,299,148.80 and 13,445,638.64

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Solution

The fourth proportional to 42,199,893.68, 63,299,148.80 and 13,445,638.64 is: 20,168,237.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,199,893.68 : 63,299,148.80 = 13,445,638.64 : x
  2. Step 2: Convert to fraction form
    42,199,893.68/63,299,148.80 = 13,445,638.64/x
  3. Step 3: Cross multiply
    42,199,893.68x = 63,299,148.80 × 13,445,638.64
  4. Step 4: Simplify right side
    42,199,893.68x = 851,097,480,984,389.62
  5. Step 5: Solve for x
    x = 851,097,480,984,389.62/42,199,893.68
  6. Step 6: Final answer
    x = 20,168,237.57

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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.