Home / 12,768,047.10-19,152,070.65-9,912,699.90

Finding the Fourth Proportional to 12,768,047.10, 19,152,070.65 and 9,912,699.90

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Solution

The fourth proportional to 12,768,047.10, 19,152,070.65 and 9,912,699.90 is: 14,869,049.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,047.10 : 19,152,070.65 = 9,912,699.90 : x
  2. Step 2: Convert to fraction form
    12,768,047.10/19,152,070.65 = 9,912,699.90/x
  3. Step 3: Cross multiply
    12,768,047.10x = 19,152,070.65 × 9,912,699.90
  4. Step 4: Simplify right side
    12,768,047.10x = 189,848,728,817,047.94
  5. Step 5: Solve for x
    x = 189,848,728,817,047.94/12,768,047.10
  6. Step 6: Final answer
    x = 14,869,049.85

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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.