Home / 12,112,618.40-18,152,338.80-9,873,130.40

Finding the Fourth Proportional to 12,112,618.40, 18,152,338.80 and 9,873,130.40

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Solution

The fourth proportional to 12,112,618.40, 18,152,338.80 and 9,873,130.40 is: 14,796,173.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112,618.40 : 18,152,338.80 = 9,873,130.40 : x
  2. Step 2: Convert to fraction form
    12,112,618.40/18,152,338.80 = 9,873,130.40/x
  3. Step 3: Cross multiply
    12,112,618.40x = 18,152,338.80 × 9,873,130.40
  4. Step 4: Simplify right side
    12,112,618.40x = 179,220,408,037,379.53
  5. Step 5: Solve for x
    x = 179,220,408,037,379.53/12,112,618.40
  6. Step 6: Final answer
    x = 14,796,173.88

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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.