Home / 554,498,358,168.15-765,207,153,921.52-310,629,543,656.55

Finding the Fourth Proportional to 554,498,358,168.15, 765,207,153,921.52 and 310,629,543,656.55

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Solution

The fourth proportional to 554,498,358,168.15, 765,207,153,921.52 and 310,629,543,656.55 is: 428,668,445,134.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,498,358,168.15 : 765,207,153,921.52 = 310,629,543,656.55 : x
  2. Step 2: Convert to fraction form
    554,498,358,168.15/765,207,153,921.52 = 310,629,543,656.55/x
  3. Step 3: Cross multiply
    554,498,358,168.15x = 765,207,153,921.52 × 310,629,543,656.55
  4. Step 4: Simplify right side
    554,498,358,168.15x = 237,695,949,025,369,156,222,976
  5. Step 5: Solve for x
    x = 237,695,949,025,369,156,222,976/554,498,358,168.15
  6. Step 6: Final answer
    x = 428,668,445,134.13

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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.