Home / 12,650,430.24-18,955,776.36-9,778,833.60

Finding the Fourth Proportional to 12,650,430.24, 18,955,776.36 and 9,778,833.60

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Solution

The fourth proportional to 12,650,430.24, 18,955,776.36 and 9,778,833.60 is: 14,652,891.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650,430.24 : 18,955,776.36 = 9,778,833.60 : x
  2. Step 2: Convert to fraction form
    12,650,430.24/18,955,776.36 = 9,778,833.60/x
  3. Step 3: Cross multiply
    12,650,430.24x = 18,955,776.36 × 9,778,833.60
  4. Step 4: Simplify right side
    12,650,430.24x = 185,365,382,783,253.69
  5. Step 5: Solve for x
    x = 185,365,382,783,253.69/12,650,430.24
  6. Step 6: Final answer
    x = 14,652,891.58

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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.