Home / 78,685,424.38-108,615,796.32-59,163,003.64

Finding the Fourth Proportional to 78,685,424.38, 108,615,796.32 and 59,163,003.64

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Solution

The fourth proportional to 78,685,424.38, 108,615,796.32 and 59,163,003.64 is: 81,667,434.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,685,424.38 : 108,615,796.32 = 59,163,003.64 : x
  2. Step 2: Convert to fraction form
    78,685,424.38/108,615,796.32 = 59,163,003.64/x
  3. Step 3: Cross multiply
    78,685,424.38x = 108,615,796.32 × 59,163,003.64
  4. Step 4: Simplify right side
    78,685,424.38x = 6,426,036,753,041,658
  5. Step 5: Solve for x
    x = 6,426,036,753,041,658/78,685,424.38
  6. Step 6: Final answer
    x = 81,667,434.64

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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.