Home / 76,990,092.60-115,485,138.90-49,780,313.40

Finding the Fourth Proportional to 76,990,092.60, 115,485,138.90 and 49,780,313.40

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Solution

The fourth proportional to 76,990,092.60, 115,485,138.90 and 49,780,313.40 is: 74,670,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,990,092.60 : 115,485,138.90 = 49,780,313.40 : x
  2. Step 2: Convert to fraction form
    76,990,092.60/115,485,138.90 = 49,780,313.40/x
  3. Step 3: Cross multiply
    76,990,092.60x = 115,485,138.90 × 49,780,313.40
  4. Step 4: Simplify right side
    76,990,092.60x = 5,748,886,407,484,531
  5. Step 5: Solve for x
    x = 5,748,886,407,484,531/76,990,092.60
  6. Step 6: Final answer
    x = 74,670,470.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.