Home / 28,493,774.20-42,773,838.90-18,438,196.60

Finding the Fourth Proportional to 28,493,774.20, 42,773,838.90 and 18,438,196.60

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Solution

The fourth proportional to 28,493,774.20, 42,773,838.90 and 18,438,196.60 is: 27,678,763.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,493,774.20 : 42,773,838.90 = 18,438,196.60 : x
  2. Step 2: Convert to fraction form
    28,493,774.20/42,773,838.90 = 18,438,196.60/x
  3. Step 3: Cross multiply
    28,493,774.20x = 42,773,838.90 × 18,438,196.60
  4. Step 4: Simplify right side
    28,493,774.20x = 788,672,450,974,927.75
  5. Step 5: Solve for x
    x = 788,672,450,974,927.75/28,493,774.20
  6. Step 6: Final answer
    x = 27,678,763.98

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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.