Home / 12,405,000.70-18,613,030.65-5,669,947.90

Finding the Fourth Proportional to 12,405,000.70, 18,613,030.65 and 5,669,947.90

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Solution

The fourth proportional to 12,405,000.70, 18,613,030.65 and 5,669,947.90 is: 8,507,449.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,405,000.70 : 18,613,030.65 = 5,669,947.90 : x
  2. Step 2: Convert to fraction form
    12,405,000.70/18,613,030.65 = 5,669,947.90/x
  3. Step 3: Cross multiply
    12,405,000.70x = 18,613,030.65 × 5,669,947.90
  4. Step 4: Simplify right side
    12,405,000.70x = 105,534,914,046,603.14
  5. Step 5: Solve for x
    x = 105,534,914,046,603.14/12,405,000.70
  6. Step 6: Final answer
    x = 8,507,449.26

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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.