Home / 28,688,464.77-39,588,926.54-15,635,442.75

Finding the Fourth Proportional to 28,688,464.77, 39,588,926.54 and 15,635,442.75

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Solution

The fourth proportional to 28,688,464.77, 39,588,926.54 and 15,635,442.75 is: 21,576,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688,464.77 : 39,588,926.54 = 15,635,442.75 : x
  2. Step 2: Convert to fraction form
    28,688,464.77/39,588,926.54 = 15,635,442.75/x
  3. Step 3: Cross multiply
    28,688,464.77x = 39,588,926.54 × 15,635,442.75
  4. Step 4: Simplify right side
    28,688,464.77x = 618,990,394,450,125.62
  5. Step 5: Solve for x
    x = 618,990,394,450,125.62/28,688,464.77
  6. Step 6: Final answer
    x = 21,576,281.60

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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.