Home / 816,950,615.83-1,127,237,661.09-486,956,460.31

Finding the Fourth Proportional to 816,950,615.83, 1,127,237,661.09 and 486,956,460.31

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Solution

The fourth proportional to 816,950,615.83, 1,127,237,661.09 and 486,956,460.31 is: 671,908,008.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,950,615.83 : 1,127,237,661.09 = 486,956,460.31 : x
  2. Step 2: Convert to fraction form
    816,950,615.83/1,127,237,661.09 = 486,956,460.31/x
  3. Step 3: Cross multiply
    816,950,615.83x = 1,127,237,661.09 × 486,956,460.31
  4. Step 4: Simplify right side
    816,950,615.83x = 548,915,661,372,509,760
  5. Step 5: Solve for x
    x = 548,915,661,372,509,760/816,950,615.83
  6. Step 6: Final answer
    x = 671,908,008.56

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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.