Home / 78,490,323.36-108,316,646.62-43,691,234.58

Finding the Fourth Proportional to 78,490,323.36, 108,316,646.62 and 43,691,234.58

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Solution

The fourth proportional to 78,490,323.36, 108,316,646.62 and 43,691,234.58 is: 60,293,903.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,490,323.36 : 108,316,646.62 = 43,691,234.58 : x
  2. Step 2: Convert to fraction form
    78,490,323.36/108,316,646.62 = 43,691,234.58/x
  3. Step 3: Cross multiply
    78,490,323.36x = 108,316,646.62 × 43,691,234.58
  4. Step 4: Simplify right side
    78,490,323.36x = 4,732,488,016,284,156
  5. Step 5: Solve for x
    x = 4,732,488,016,284,156/78,490,323.36
  6. Step 6: Final answer
    x = 60,293,903.93

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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.