Home / 78,457,426.88-108,272,245.17-43,179,293.84

Finding the Fourth Proportional to 78,457,426.88, 108,272,245.17 and 43,179,293.84

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Solution

The fourth proportional to 78,457,426.88, 108,272,245.17 and 43,179,293.84 is: 59,587,973.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,457,426.88 : 108,272,245.17 = 43,179,293.84 : x
  2. Step 2: Convert to fraction form
    78,457,426.88/108,272,245.17 = 43,179,293.84/x
  3. Step 3: Cross multiply
    78,457,426.88x = 108,272,245.17 × 43,179,293.84
  4. Step 4: Simplify right side
    78,457,426.88x = 4,675,119,088,154,693
  5. Step 5: Solve for x
    x = 4,675,119,088,154,693/78,457,426.88
  6. Step 6: Final answer
    x = 59,587,973.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.