Home / 623,972,131.48-861,071,021.13-345,507,676.30

Finding the Fourth Proportional to 623,972,131.48, 861,071,021.13 and 345,507,676.30

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Solution

The fourth proportional to 623,972,131.48, 861,071,021.13 and 345,507,676.30 is: 476,794,767.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,972,131.48 : 861,071,021.13 = 345,507,676.30 : x
  2. Step 2: Convert to fraction form
    623,972,131.48/861,071,021.13 = 345,507,676.30/x
  3. Step 3: Cross multiply
    623,972,131.48x = 861,071,021.13 × 345,507,676.30
  4. Step 4: Simplify right side
    623,972,131.48x = 297,506,647,639,894,528
  5. Step 5: Solve for x
    x = 297,506,647,639,894,528/623,972,131.48
  6. Step 6: Final answer
    x = 476,794,767.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.