Home / 78,973,259.09-108,978,550.13-43,688,985.17

Finding the Fourth Proportional to 78,973,259.09, 108,978,550.13 and 43,688,985.17

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Solution

The fourth proportional to 78,973,259.09, 108,978,550.13 and 43,688,985.17 is: 60,288,283.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,973,259.09 : 108,978,550.13 = 43,688,985.17 : x
  2. Step 2: Convert to fraction form
    78,973,259.09/108,978,550.13 = 43,688,985.17/x
  3. Step 3: Cross multiply
    78,973,259.09x = 108,978,550.13 × 43,688,985.17
  4. Step 4: Simplify right side
    78,973,259.09x = 4,761,162,260,042,001
  5. Step 5: Solve for x
    x = 4,761,162,260,042,001/78,973,259.09
  6. Step 6: Final answer
    x = 60,288,283.85

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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.