Home / 78,065,768.64-107,727,850.08-45,027,372

Finding the Fourth Proportional to 78,065,768.64, 107,727,850.08 and 45,027,372

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Solution

The fourth proportional to 78,065,768.64, 107,727,850.08 and 45,027,372 is: 62,136,094.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,065,768.64 : 107,727,850.08 = 45,027,372 : x
  2. Step 2: Convert to fraction form
    78,065,768.64/107,727,850.08 = 45,027,372/x
  3. Step 3: Cross multiply
    78,065,768.64x = 107,727,850.08 × 45,027,372
  4. Step 4: Simplify right side
    78,065,768.64x = 4,850,701,980,312,390
  5. Step 5: Solve for x
    x = 4,850,701,980,312,390/78,065,768.64
  6. Step 6: Final answer
    x = 62,136,094.54

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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.