Home / 105,378,788.18-145,424,449.41-57,693,246.86

Finding the Fourth Proportional to 105,378,788.18, 145,424,449.41 and 57,693,246.86

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Solution

The fourth proportional to 105,378,788.18, 145,424,449.41 and 57,693,246.86 is: 79,617,623.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,378,788.18 : 145,424,449.41 = 57,693,246.86 : x
  2. Step 2: Convert to fraction form
    105,378,788.18/145,424,449.41 = 57,693,246.86/x
  3. Step 3: Cross multiply
    105,378,788.18x = 145,424,449.41 × 57,693,246.86
  4. Step 4: Simplify right side
    105,378,788.18x = 8,390,008,659,290,711
  5. Step 5: Solve for x
    x = 8,390,008,659,290,711/105,378,788.18
  6. Step 6: Final answer
    x = 79,617,623.28

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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.