Home / 28,459,409.60-39,273,998.46-15,406,668.50

Finding the Fourth Proportional to 28,459,409.60, 39,273,998.46 and 15,406,668.50

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Solution

The fourth proportional to 28,459,409.60, 39,273,998.46 and 15,406,668.50 is: 21,261,209.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,459,409.60 : 39,273,998.46 = 15,406,668.50 : x
  2. Step 2: Convert to fraction form
    28,459,409.60/39,273,998.46 = 15,406,668.50/x
  3. Step 3: Cross multiply
    28,459,409.60x = 39,273,998.46 × 15,406,668.50
  4. Step 4: Simplify right side
    28,459,409.60x = 605,081,474,775,248
  5. Step 5: Solve for x
    x = 605,081,474,775,248/28,459,409.60
  6. Step 6: Final answer
    x = 21,261,209.68

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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.