Home / 497,918,340.90-687,187,563.80-283,389,145.20

Finding the Fourth Proportional to 497,918,340.90, 687,187,563.80 and 283,389,145.20

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Solution

The fourth proportional to 497,918,340.90, 687,187,563.80 and 283,389,145.20 is: 391,111,313.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,918,340.90 : 687,187,563.80 = 283,389,145.20 : x
  2. Step 2: Convert to fraction form
    497,918,340.90/687,187,563.80 = 283,389,145.20/x
  3. Step 3: Cross multiply
    497,918,340.90x = 687,187,563.80 × 283,389,145.20
  4. Step 4: Simplify right side
    497,918,340.90x = 194,741,496,295,935,488
  5. Step 5: Solve for x
    x = 194,741,496,295,935,488/497,918,340.90
  6. Step 6: Final answer
    x = 391,111,313.44

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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.