Home / 43,315,138.32-64,969,459.80-12,609,953.58

Finding the Fourth Proportional to 43,315,138.32, 64,969,459.80 and 12,609,953.58

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Solution

The fourth proportional to 43,315,138.32, 64,969,459.80 and 12,609,953.58 is: 18,913,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,315,138.32 : 64,969,459.80 = 12,609,953.58 : x
  2. Step 2: Convert to fraction form
    43,315,138.32/64,969,459.80 = 12,609,953.58/x
  3. Step 3: Cross multiply
    43,315,138.32x = 64,969,459.80 × 12,609,953.58
  4. Step 4: Simplify right side
    43,315,138.32x = 819,261,872,195,676
  5. Step 5: Solve for x
    x = 819,261,872,195,676/43,315,138.32
  6. Step 6: Final answer
    x = 18,913,984.90

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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.