Home / 28,775,699.60-39,709,283.76-15,723,406.56

Finding the Fourth Proportional to 28,775,699.60, 39,709,283.76 and 15,723,406.56

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Solution

The fourth proportional to 28,775,699.60, 39,709,283.76 and 15,723,406.56 is: 21,697,655.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775,699.60 : 39,709,283.76 = 15,723,406.56 : x
  2. Step 2: Convert to fraction form
    28,775,699.60/39,709,283.76 = 15,723,406.56/x
  3. Step 3: Cross multiply
    28,775,699.60x = 39,709,283.76 × 15,723,406.56
  4. Step 4: Simplify right side
    28,775,699.60x = 624,365,212,764,885.50
  5. Step 5: Solve for x
    x = 624,365,212,764,885.50/28,775,699.60
  6. Step 6: Final answer
    x = 21,697,655.36

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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.