Home / 105,493,470.12-145,534,615.02-63,654,198.68

Finding the Fourth Proportional to 105,493,470.12, 145,534,615.02 and 63,654,198.68

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Solution

The fourth proportional to 105,493,470.12, 145,534,615.02 and 63,654,198.68 is: 87,814,812.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,493,470.12 : 145,534,615.02 = 63,654,198.68 : x
  2. Step 2: Convert to fraction form
    105,493,470.12/145,534,615.02 = 63,654,198.68/x
  3. Step 3: Cross multiply
    105,493,470.12x = 145,534,615.02 × 63,654,198.68
  4. Step 4: Simplify right side
    105,493,470.12x = 9,263,889,299,300,392
  5. Step 5: Solve for x
    x = 9,263,889,299,300,392/105,493,470.12
  6. Step 6: Final answer
    x = 87,814,812.51

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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.