Home / 1,291,580,379.18-1,937,678,484.33-418,182,010.47

Finding the Fourth Proportional to 1,291,580,379.18, 1,937,678,484.33 and 418,182,010.47

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Solution

The fourth proportional to 1,291,580,379.18, 1,937,678,484.33 and 418,182,010.47 is: 627,372,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,580,379.18 : 1,937,678,484.33 = 418,182,010.47 : x
  2. Step 2: Convert to fraction form
    1,291,580,379.18/1,937,678,484.33 = 418,182,010.47/x
  3. Step 3: Cross multiply
    1,291,580,379.18x = 1,937,678,484.33 × 418,182,010.47
  4. Step 4: Simplify right side
    1,291,580,379.18x = 810,302,284,221,581,824
  5. Step 5: Solve for x
    x = 810,302,284,221,581,824/1,291,580,379.18
  6. Step 6: Final answer
    x = 627,372,711.20

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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.