Home / 105,187,394.28-145,155,819.38-58,778,029.56

Finding the Fourth Proportional to 105,187,394.28, 145,155,819.38 and 58,778,029.56

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Solution

The fourth proportional to 105,187,394.28, 145,155,819.38 and 58,778,029.56 is: 81,112,124.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,187,394.28 : 145,155,819.38 = 58,778,029.56 : x
  2. Step 2: Convert to fraction form
    105,187,394.28/145,155,819.38 = 58,778,029.56/x
  3. Step 3: Cross multiply
    105,187,394.28x = 145,155,819.38 × 58,778,029.56
  4. Step 4: Simplify right side
    105,187,394.28x = 8,531,973,042,323,661
  5. Step 5: Solve for x
    x = 8,531,973,042,323,661/105,187,394.28
  6. Step 6: Final answer
    x = 81,112,124.71

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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.