Home / 872,987,790.29-1,204,543,310.89-501,638,077.13

Finding the Fourth Proportional to 872,987,790.29, 1,204,543,310.89 and 501,638,077.13

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Solution

The fourth proportional to 872,987,790.29, 1,204,543,310.89 and 501,638,077.13 is: 692,157,206.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,987,790.29 : 1,204,543,310.89 = 501,638,077.13 : x
  2. Step 2: Convert to fraction form
    872,987,790.29/1,204,543,310.89 = 501,638,077.13/x
  3. Step 3: Cross multiply
    872,987,790.29x = 1,204,543,310.89 × 501,638,077.13
  4. Step 4: Simplify right side
    872,987,790.29x = 604,244,790,296,148,608
  5. Step 5: Solve for x
    x = 604,244,790,296,148,608/872,987,790.29
  6. Step 6: Final answer
    x = 692,157,206.57

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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.