Home / 487,126,860.48-671,584,767.84-386,987,559.36

Finding the Fourth Proportional to 487,126,860.48, 671,584,767.84 and 386,987,559.36

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Solution

The fourth proportional to 487,126,860.48, 671,584,767.84 and 386,987,559.36 is: 533,526,215.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,126,860.48 : 671,584,767.84 = 386,987,559.36 : x
  2. Step 2: Convert to fraction form
    487,126,860.48/671,584,767.84 = 386,987,559.36/x
  3. Step 3: Cross multiply
    487,126,860.48x = 671,584,767.84 × 386,987,559.36
  4. Step 4: Simplify right side
    487,126,860.48x = 259,894,950,209,753,856
  5. Step 5: Solve for x
    x = 259,894,950,209,753,856/487,126,860.48
  6. Step 6: Final answer
    x = 533,526,215.23

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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.