Home / 78,345,204.77-117,364,569.66-64,531,993.70

Finding the Fourth Proportional to 78,345,204.77, 117,364,569.66 and 64,531,993.70

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Solution

The fourth proportional to 78,345,204.77, 117,364,569.66 and 64,531,993.70 is: 96,671,770.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,345,204.77 : 117,364,569.66 = 64,531,993.70 : x
  2. Step 2: Convert to fraction form
    78,345,204.77/117,364,569.66 = 64,531,993.70/x
  3. Step 3: Cross multiply
    78,345,204.77x = 117,364,569.66 × 64,531,993.70
  4. Step 4: Simplify right side
    78,345,204.77x = 7,573,769,669,315,508
  5. Step 5: Solve for x
    x = 7,573,769,669,315,508/78,345,204.77
  6. Step 6: Final answer
    x = 96,671,770.69

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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.