Home / 103,985,537.68-143,508,121.32-57,580,109.20

Finding the Fourth Proportional to 103,985,537.68, 143,508,121.32 and 57,580,109.20

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Solution

The fourth proportional to 103,985,537.68, 143,508,121.32 and 57,580,109.20 is: 79,465,024.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,985,537.68 : 143,508,121.32 = 57,580,109.20 : x
  2. Step 2: Convert to fraction form
    103,985,537.68/143,508,121.32 = 57,580,109.20/x
  3. Step 3: Cross multiply
    103,985,537.68x = 143,508,121.32 × 57,580,109.20
  4. Step 4: Simplify right side
    103,985,537.68x = 8,263,213,296,692,448
  5. Step 5: Solve for x
    x = 8,263,213,296,692,448/103,985,537.68
  6. Step 6: Final answer
    x = 79,465,024.47

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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.