Home / 28,355,188.80-42,532,783.20-13,985,140.80

Finding the Fourth Proportional to 28,355,188.80, 42,532,783.20 and 13,985,140.80

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Solution

The fourth proportional to 28,355,188.80, 42,532,783.20 and 13,985,140.80 is: 20,977,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355,188.80 : 42,532,783.20 = 13,985,140.80 : x
  2. Step 2: Convert to fraction form
    28,355,188.80/42,532,783.20 = 13,985,140.80/x
  3. Step 3: Cross multiply
    28,355,188.80x = 42,532,783.20 × 13,985,140.80
  4. Step 4: Simplify right side
    28,355,188.80x = 594,826,961,667,874.62
  5. Step 5: Solve for x
    x = 594,826,961,667,874.62/28,355,188.80
  6. Step 6: Final answer
    x = 20,977,711.20

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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.