Home / 77,247,129.70-115,945,344.15-47,014,041.70

Finding the Fourth Proportional to 77,247,129.70, 115,945,344.15 and 47,014,041.70

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Solution

The fourth proportional to 77,247,129.70, 115,945,344.15 and 47,014,041.70 is: 70,566,495.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,247,129.70 : 115,945,344.15 = 47,014,041.70 : x
  2. Step 2: Convert to fraction form
    77,247,129.70/115,945,344.15 = 47,014,041.70/x
  3. Step 3: Cross multiply
    77,247,129.70x = 115,945,344.15 × 47,014,041.70
  4. Step 4: Simplify right side
    77,247,129.70x = 5,451,059,244,788,952
  5. Step 5: Solve for x
    x = 5,451,059,244,788,952/77,247,129.70
  6. Step 6: Final answer
    x = 70,566,495.69

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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.