Home / 1,128,535,827.79-1,692,133,131.83-429,079,163.23

Finding the Fourth Proportional to 1,128,535,827.79, 1,692,133,131.83 and 429,079,163.23

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Solution

The fourth proportional to 1,128,535,827.79, 1,692,133,131.83 and 429,079,163.23 is: 643,363,773.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,535,827.79 : 1,692,133,131.83 = 429,079,163.23 : x
  2. Step 2: Convert to fraction form
    1,128,535,827.79/1,692,133,131.83 = 429,079,163.23/x
  3. Step 3: Cross multiply
    1,128,535,827.79x = 1,692,133,131.83 × 429,079,163.23
  4. Step 4: Simplify right side
    1,128,535,827.79x = 726,059,068,279,375,616
  5. Step 5: Solve for x
    x = 726,059,068,279,375,616/1,128,535,827.79
  6. Step 6: Final answer
    x = 643,363,773.13

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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.