Home / 192,382,913-265,516,784.52-121,824,963.20

Finding the Fourth Proportional to 192,382,913, 265,516,784.52 and 121,824,963.20

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Solution

The fourth proportional to 192,382,913, 265,516,784.52 and 121,824,963.20 is: 168,136,410.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,382,913 : 265,516,784.52 = 121,824,963.20 : x
  2. Step 2: Convert to fraction form
    192,382,913/265,516,784.52 = 121,824,963.20/x
  3. Step 3: Cross multiply
    192,382,913x = 265,516,784.52 × 121,824,963.20
  4. Step 4: Simplify right side
    192,382,913x = 32,346,572,503,131,332
  5. Step 5: Solve for x
    x = 32,346,572,503,131,332/192,382,913
  6. Step 6: Final answer
    x = 168,136,410.86

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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.