Home / 78,459,164.80-108,270,922.32-43,173,669.28

Finding the Fourth Proportional to 78,459,164.80, 108,270,922.32 and 43,173,669.28

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Solution

The fourth proportional to 78,459,164.80, 108,270,922.32 and 43,173,669.28 is: 59,578,164.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,459,164.80 : 108,270,922.32 = 43,173,669.28 : x
  2. Step 2: Convert to fraction form
    78,459,164.80/108,270,922.32 = 43,173,669.28/x
  3. Step 3: Cross multiply
    78,459,164.80x = 108,270,922.32 × 43,173,669.28
  4. Step 4: Simplify right side
    78,459,164.80x = 4,674,452,992,884,250
  5. Step 5: Solve for x
    x = 4,674,452,992,884,250/78,459,164.80
  6. Step 6: Final answer
    x = 59,578,164.07

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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.