Home / 729,835,072.34-1,007,164,381.65-395,299,272.02

Finding the Fourth Proportional to 729,835,072.34, 1,007,164,381.65 and 395,299,272.02

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Solution

The fourth proportional to 729,835,072.34, 1,007,164,381.65 and 395,299,272.02 is: 545,508,652.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,835,072.34 : 1,007,164,381.65 = 395,299,272.02 : x
  2. Step 2: Convert to fraction form
    729,835,072.34/1,007,164,381.65 = 395,299,272.02/x
  3. Step 3: Cross multiply
    729,835,072.34x = 1,007,164,381.65 × 395,299,272.02
  4. Step 4: Simplify right side
    729,835,072.34x = 398,131,346,870,718,400
  5. Step 5: Solve for x
    x = 398,131,346,870,718,400/729,835,072.34
  6. Step 6: Final answer
    x = 545,508,652.52

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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.