Home / 144,229,950.63-199,038,024.90-78,150,431.43

Finding the Fourth Proportional to 144,229,950.63, 199,038,024.90 and 78,150,431.43

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Solution

The fourth proportional to 144,229,950.63, 199,038,024.90 and 78,150,431.43 is: 107,847,970.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,229,950.63 : 199,038,024.90 = 78,150,431.43 : x
  2. Step 2: Convert to fraction form
    144,229,950.63/199,038,024.90 = 78,150,431.43/x
  3. Step 3: Cross multiply
    144,229,950.63x = 199,038,024.90 × 78,150,431.43
  4. Step 4: Simplify right side
    144,229,950.63x = 15,554,907,516,910,084
  5. Step 5: Solve for x
    x = 15,554,907,516,910,084/144,229,950.63
  6. Step 6: Final answer
    x = 107,847,970.89

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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.