Home / 12,457,856.40-18,686,784.60-7,335,027.60

Finding the Fourth Proportional to 12,457,856.40, 18,686,784.60 and 7,335,027.60

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Solution

The fourth proportional to 12,457,856.40, 18,686,784.60 and 7,335,027.60 is: 11,002,541.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,856.40 : 18,686,784.60 = 7,335,027.60 : x
  2. Step 2: Convert to fraction form
    12,457,856.40/18,686,784.60 = 7,335,027.60/x
  3. Step 3: Cross multiply
    12,457,856.40x = 18,686,784.60 × 7,335,027.60
  4. Step 4: Simplify right side
    12,457,856.40x = 137,068,080,796,254.97
  5. Step 5: Solve for x
    x = 137,068,080,796,254.97/12,457,856.40
  6. Step 6: Final answer
    x = 11,002,541.40

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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.