Home / 819,538,019.56-1,229,309,128.86-334,863,827.56

Finding the Fourth Proportional to 819,538,019.56, 1,229,309,128.86 and 334,863,827.56

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Solution

The fourth proportional to 819,538,019.56, 1,229,309,128.86 and 334,863,827.56 is: 502,296,599.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,538,019.56 : 1,229,309,128.86 = 334,863,827.56 : x
  2. Step 2: Convert to fraction form
    819,538,019.56/1,229,309,128.86 = 334,863,827.56/x
  3. Step 3: Cross multiply
    819,538,019.56x = 1,229,309,128.86 × 334,863,827.56
  4. Step 4: Simplify right side
    819,538,019.56x = 411,651,160,144,508,800
  5. Step 5: Solve for x
    x = 411,651,160,144,508,800/819,538,019.56
  6. Step 6: Final answer
    x = 502,296,599.21

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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.