Home / 78,009,604.08-107,601,417.96-50,167,515.12

Finding the Fourth Proportional to 78,009,604.08, 107,601,417.96 and 50,167,515.12

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Solution

The fourth proportional to 78,009,604.08, 107,601,417.96 and 50,167,515.12 is: 69,197,835.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,009,604.08 : 107,601,417.96 = 50,167,515.12 : x
  2. Step 2: Convert to fraction form
    78,009,604.08/107,601,417.96 = 50,167,515.12/x
  3. Step 3: Cross multiply
    78,009,604.08x = 107,601,417.96 × 50,167,515.12
  4. Step 4: Simplify right side
    78,009,604.08x = 5,398,095,762,441,739
  5. Step 5: Solve for x
    x = 5,398,095,762,441,739/78,009,604.08
  6. Step 6: Final answer
    x = 69,197,835.65

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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.