Home / 103,412,010.49-142,708,539.67-57,003,039.43

Finding the Fourth Proportional to 103,412,010.49, 142,708,539.67 and 57,003,039.43

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Solution

The fourth proportional to 103,412,010.49, 142,708,539.67 and 57,003,039.43 is: 78,664,175.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,412,010.49 : 142,708,539.67 = 57,003,039.43 : x
  2. Step 2: Convert to fraction form
    103,412,010.49/142,708,539.67 = 57,003,039.43/x
  3. Step 3: Cross multiply
    103,412,010.49x = 142,708,539.67 × 57,003,039.43
  4. Step 4: Simplify right side
    103,412,010.49x = 8,134,820,513,521,713
  5. Step 5: Solve for x
    x = 8,134,820,513,521,713/103,412,010.49
  6. Step 6: Final answer
    x = 78,664,175.22

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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.