Home / 12,666,113.82-18,991,972.98-4,985,595.90

Finding the Fourth Proportional to 12,666,113.82, 18,991,972.98 and 4,985,595.90

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Solution

The fourth proportional to 12,666,113.82, 18,991,972.98 and 4,985,595.90 is: 7,475,560.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666,113.82 : 18,991,972.98 = 4,985,595.90 : x
  2. Step 2: Convert to fraction form
    12,666,113.82/18,991,972.98 = 4,985,595.90/x
  3. Step 3: Cross multiply
    12,666,113.82x = 18,991,972.98 × 4,985,595.90
  4. Step 4: Simplify right side
    12,666,113.82x = 94,686,302,621,998.80
  5. Step 5: Solve for x
    x = 94,686,302,621,998.80/12,666,113.82
  6. Step 6: Final answer
    x = 7,475,560.69

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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.