Home / 829,563,941.43-1,243,476,713.57-386,541,372.20

Finding the Fourth Proportional to 829,563,941.43, 1,243,476,713.57 and 386,541,372.20

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Solution

The fourth proportional to 829,563,941.43, 1,243,476,713.57 and 386,541,372.20 is: 579,407,048.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,563,941.43 : 1,243,476,713.57 = 386,541,372.20 : x
  2. Step 2: Convert to fraction form
    829,563,941.43/1,243,476,713.57 = 386,541,372.20/x
  3. Step 3: Cross multiply
    829,563,941.43x = 1,243,476,713.57 × 386,541,372.20
  4. Step 4: Simplify right side
    829,563,941.43x = 480,655,195,153,944,064
  5. Step 5: Solve for x
    x = 480,655,195,153,944,064/829,563,941.43
  6. Step 6: Final answer
    x = 579,407,048.87

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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.