Home / 829,563,959.43-1,243,476,740.52-386,541,390.24

Finding the Fourth Proportional to 829,563,959.43, 1,243,476,740.52 and 386,541,390.24

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Solution

The fourth proportional to 829,563,959.43, 1,243,476,740.52 and 386,541,390.24 is: 579,407,075.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,563,959.43 : 1,243,476,740.52 = 386,541,390.24 : x
  2. Step 2: Convert to fraction form
    829,563,959.43/1,243,476,740.52 = 386,541,390.24/x
  3. Step 3: Cross multiply
    829,563,959.43x = 1,243,476,740.52 × 386,541,390.24
  4. Step 4: Simplify right side
    829,563,959.43x = 480,655,228,011,704,576
  5. Step 5: Solve for x
    x = 480,655,228,011,704,576/829,563,959.43
  6. Step 6: Final answer
    x = 579,407,075.91

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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.