Home / 78,009,528.18-107,601,313.46-50,167,438.94

Finding the Fourth Proportional to 78,009,528.18, 107,601,313.46 and 50,167,438.94

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Solution

The fourth proportional to 78,009,528.18, 107,601,313.46 and 50,167,438.94 is: 69,197,730.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,009,528.18 : 107,601,313.46 = 50,167,438.94 : x
  2. Step 2: Convert to fraction form
    78,009,528.18/107,601,313.46 = 50,167,438.94/x
  3. Step 3: Cross multiply
    78,009,528.18x = 107,601,313.46 × 50,167,438.94
  4. Step 4: Simplify right side
    78,009,528.18x = 5,398,082,322,868,350
  5. Step 5: Solve for x
    x = 5,398,082,322,868,350/78,009,528.18
  6. Step 6: Final answer
    x = 69,197,730.70

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1.5x scale

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.