Home / 78,030,850.32-107,596,298.63-49,728,410.79

Finding the Fourth Proportional to 78,030,850.32, 107,596,298.63 and 49,728,410.79

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Solution

The fourth proportional to 78,030,850.32, 107,596,298.63 and 49,728,410.79 is: 68,570,224.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,030,850.32 : 107,596,298.63 = 49,728,410.79 : x
  2. Step 2: Convert to fraction form
    78,030,850.32/107,596,298.63 = 49,728,410.79/x
  3. Step 3: Cross multiply
    78,030,850.32x = 107,596,298.63 × 49,728,410.79
  4. Step 4: Simplify right side
    78,030,850.32x = 5,350,592,937,507,512
  5. Step 5: Solve for x
    x = 5,350,592,937,507,512/78,030,850.32
  6. Step 6: Final answer
    x = 68,570,224.67

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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.