Home / 103,412,012.74-142,708,542.77-57,003,041.68

Finding the Fourth Proportional to 103,412,012.74, 142,708,542.77 and 57,003,041.68

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Solution

The fourth proportional to 103,412,012.74, 142,708,542.77 and 57,003,041.68 is: 78,664,178.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,412,012.74 : 142,708,542.77 = 57,003,041.68 : x
  2. Step 2: Convert to fraction form
    103,412,012.74/142,708,542.77 = 57,003,041.68/x
  3. Step 3: Cross multiply
    103,412,012.74x = 142,708,542.77 × 57,003,041.68
  4. Step 4: Simplify right side
    103,412,012.74x = 8,134,821,011,610,373
  5. Step 5: Solve for x
    x = 8,134,821,011,610,373/103,412,012.74
  6. Step 6: Final answer
    x = 78,664,178.33

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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.