Home / 103,959,699.27-143,466,083.88-56,915,987.91

Finding the Fourth Proportional to 103,959,699.27, 143,466,083.88 and 56,915,987.91

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Solution

The fourth proportional to 103,959,699.27, 143,466,083.88 and 56,915,987.91 is: 78,544,993.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,959,699.27 : 143,466,083.88 = 56,915,987.91 : x
  2. Step 2: Convert to fraction form
    103,959,699.27/143,466,083.88 = 56,915,987.91/x
  3. Step 3: Cross multiply
    103,959,699.27x = 143,466,083.88 × 56,915,987.91
  4. Step 4: Simplify right side
    103,959,699.27x = 8,165,513,895,609,125
  5. Step 5: Solve for x
    x = 8,165,513,895,609,125/103,959,699.27
  6. Step 6: Final answer
    x = 78,544,993.42

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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.