Home / 76,478,343.24-105,538,784.85-41,671,319.70

Finding the Fourth Proportional to 76,478,343.24, 105,538,784.85 and 41,671,319.70

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Solution

The fourth proportional to 76,478,343.24, 105,538,784.85 and 41,671,319.70 is: 57,505,697.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,478,343.24 : 105,538,784.85 = 41,671,319.70 : x
  2. Step 2: Convert to fraction form
    76,478,343.24/105,538,784.85 = 41,671,319.70/x
  3. Step 3: Cross multiply
    76,478,343.24x = 105,538,784.85 × 41,671,319.70
  4. Step 4: Simplify right side
    76,478,343.24x = 4,397,940,444,233,866.50
  5. Step 5: Solve for x
    x = 4,397,940,444,233,866.50/76,478,343.24
  6. Step 6: Final answer
    x = 57,505,697.14

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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.