Home / 20,390,403.60-30,621,034.80-10,824,465.60

Finding the Fourth Proportional to 20,390,403.60, 30,621,034.80 and 10,824,465.60

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Solution

The fourth proportional to 20,390,403.60, 30,621,034.80 and 10,824,465.60 is: 16,255,506.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,390,403.60 : 30,621,034.80 = 10,824,465.60 : x
  2. Step 2: Convert to fraction form
    20,390,403.60/30,621,034.80 = 10,824,465.60/x
  3. Step 3: Cross multiply
    20,390,403.60x = 30,621,034.80 × 10,824,465.60
  4. Step 4: Simplify right side
    20,390,403.60x = 331,456,337,829,002.88
  5. Step 5: Solve for x
    x = 331,456,337,829,002.88/20,390,403.60
  6. Step 6: Final answer
    x = 16,255,506.48

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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.