Home / 829,563,938.42-1,243,476,709.07-386,541,369.18

Finding the Fourth Proportional to 829,563,938.42, 1,243,476,709.07 and 386,541,369.18

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Solution

The fourth proportional to 829,563,938.42, 1,243,476,709.07 and 386,541,369.18 is: 579,407,044.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,563,938.42 : 1,243,476,709.07 = 386,541,369.18 : x
  2. Step 2: Convert to fraction form
    829,563,938.42/1,243,476,709.07 = 386,541,369.18/x
  3. Step 3: Cross multiply
    829,563,938.42x = 1,243,476,709.07 × 386,541,369.18
  4. Step 4: Simplify right side
    829,563,938.42x = 480,655,189,665,425,664
  5. Step 5: Solve for x
    x = 480,655,189,665,425,664/829,563,938.42
  6. Step 6: Final answer
    x = 579,407,044.36

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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.