Home / 29,270,190-40,406,903.28-20,575,815.60

Finding the Fourth Proportional to 29,270,190, 40,406,903.28 and 20,575,815.60

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Solution

The fourth proportional to 29,270,190, 40,406,903.28 and 20,575,815.60 is: 28,404,495.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,270,190 : 40,406,903.28 = 20,575,815.60 : x
  2. Step 2: Convert to fraction form
    29,270,190/40,406,903.28 = 20,575,815.60/x
  3. Step 3: Cross multiply
    29,270,190x = 40,406,903.28 × 20,575,815.60
  4. Step 4: Simplify right side
    29,270,190x = 831,404,990,856,315.25
  5. Step 5: Solve for x
    x = 831,404,990,856,315.25/29,270,190
  6. Step 6: Final answer
    x = 28,404,495.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.