Home / 829,563,939.42-1,243,476,710.56-386,541,370.18

Finding the Fourth Proportional to 829,563,939.42, 1,243,476,710.56 and 386,541,370.18

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Solution

The fourth proportional to 829,563,939.42, 1,243,476,710.56 and 386,541,370.18 is: 579,407,045.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,563,939.42 : 1,243,476,710.56 = 386,541,370.18 : x
  2. Step 2: Convert to fraction form
    829,563,939.42/1,243,476,710.56 = 386,541,370.18/x
  3. Step 3: Cross multiply
    829,563,939.42x = 1,243,476,710.56 × 386,541,370.18
  4. Step 4: Simplify right side
    829,563,939.42x = 480,655,191,486,781,632
  5. Step 5: Solve for x
    x = 480,655,191,486,781,632/829,563,939.42
  6. Step 6: Final answer
    x = 579,407,045.85

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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.