Home / 512,521,340.16-768,913,055.52-149,015,696.16

Finding the Fourth Proportional to 512,521,340.16, 768,913,055.52 and 149,015,696.16

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Solution

The fourth proportional to 512,521,340.16, 768,913,055.52 and 149,015,696.16 is: 223,561,645.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,521,340.16 : 768,913,055.52 = 149,015,696.16 : x
  2. Step 2: Convert to fraction form
    512,521,340.16/768,913,055.52 = 149,015,696.16/x
  3. Step 3: Cross multiply
    512,521,340.16x = 768,913,055.52 × 149,015,696.16
  4. Step 4: Simplify right side
    512,521,340.16x = 114,580,114,254,825,520
  5. Step 5: Solve for x
    x = 114,580,114,254,825,520/512,521,340.16
  6. Step 6: Final answer
    x = 223,561,645.68

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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.