Home / 78,082,300.32-107,749,426.74-45,040,583.69

Finding the Fourth Proportional to 78,082,300.32, 107,749,426.74 and 45,040,583.69

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Solution

The fourth proportional to 78,082,300.32, 107,749,426.74 and 45,040,583.69 is: 62,153,612.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,082,300.32 : 107,749,426.74 = 45,040,583.69 : x
  2. Step 2: Convert to fraction form
    78,082,300.32/107,749,426.74 = 45,040,583.69/x
  3. Step 3: Cross multiply
    78,082,300.32x = 107,749,426.74 × 45,040,583.69
  4. Step 4: Simplify right side
    78,082,300.32x = 4,853,097,072,328,905
  5. Step 5: Solve for x
    x = 4,853,097,072,328,905/78,082,300.32
  6. Step 6: Final answer
    x = 62,153,612.95

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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.