Home / 5,478,575.20-7,558,597.80-3,155,421.21

Finding the Fourth Proportional to 5,478,575.20, 7,558,597.80 and 3,155,421.21

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Solution

The fourth proportional to 5,478,575.20, 7,558,597.80 and 3,155,421.21 is: 4,353,423.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478,575.20 : 7,558,597.80 = 3,155,421.21 : x
  2. Step 2: Convert to fraction form
    5,478,575.20/7,558,597.80 = 3,155,421.21/x
  3. Step 3: Cross multiply
    5,478,575.20x = 7,558,597.80 × 3,155,421.21
  4. Step 4: Simplify right side
    5,478,575.20x = 23,850,559,815,979.34
  5. Step 5: Solve for x
    x = 23,850,559,815,979.34/5,478,575.20
  6. Step 6: Final answer
    x = 4,353,423.83

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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.