Home / 20,723,421.40-31,085,132.10-19,462,672.60

Finding the Fourth Proportional to 20,723,421.40, 31,085,132.10 and 19,462,672.60

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Solution

The fourth proportional to 20,723,421.40, 31,085,132.10 and 19,462,672.60 is: 29,194,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723,421.40 : 31,085,132.10 = 19,462,672.60 : x
  2. Step 2: Convert to fraction form
    20,723,421.40/31,085,132.10 = 19,462,672.60/x
  3. Step 3: Cross multiply
    20,723,421.40x = 31,085,132.10 × 19,462,672.60
  4. Step 4: Simplify right side
    20,723,421.40x = 604,999,748,790,050.50
  5. Step 5: Solve for x
    x = 604,999,748,790,050.50/20,723,421.40
  6. Step 6: Final answer
    x = 29,194,008.90

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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.