Home / 77,007,225.90-115,509,722.13-18,715,336.14

Finding the Fourth Proportional to 77,007,225.90, 115,509,722.13 and 18,715,336.14

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Solution

The fourth proportional to 77,007,225.90, 115,509,722.13 and 18,715,336.14 is: 28,072,732.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,007,225.90 : 115,509,722.13 = 18,715,336.14 : x
  2. Step 2: Convert to fraction form
    77,007,225.90/115,509,722.13 = 18,715,336.14/x
  3. Step 3: Cross multiply
    77,007,225.90x = 115,509,722.13 × 18,715,336.14
  4. Step 4: Simplify right side
    77,007,225.90x = 2,161,803,277,100,946.75
  5. Step 5: Solve for x
    x = 2,161,803,277,100,946.75/77,007,225.90
  6. Step 6: Final answer
    x = 28,072,732.81

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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.