Home / 12,457,904.10-18,686,856.15-7,650,003.30

Finding the Fourth Proportional to 12,457,904.10, 18,686,856.15 and 7,650,003.30

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Solution

The fourth proportional to 12,457,904.10, 18,686,856.15 and 7,650,003.30 is: 11,475,004.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,904.10 : 18,686,856.15 = 7,650,003.30 : x
  2. Step 2: Convert to fraction form
    12,457,904.10/18,686,856.15 = 7,650,003.30/x
  3. Step 3: Cross multiply
    12,457,904.10x = 18,686,856.15 × 7,650,003.30
  4. Step 4: Simplify right side
    12,457,904.10x = 142,954,511,214,125.28
  5. Step 5: Solve for x
    x = 142,954,511,214,125.28/12,457,904.10
  6. Step 6: Final answer
    x = 11,475,004.95

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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.