Home / 119,624,739.76-165,112,853.70-77,912,744.86

Finding the Fourth Proportional to 119,624,739.76, 165,112,853.70 and 77,912,744.86

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Solution

The fourth proportional to 119,624,739.76, 165,112,853.70 and 77,912,744.86 is: 107,539,591.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,624,739.76 : 165,112,853.70 = 77,912,744.86 : x
  2. Step 2: Convert to fraction form
    119,624,739.76/165,112,853.70 = 77,912,744.86/x
  3. Step 3: Cross multiply
    119,624,739.76x = 165,112,853.70 × 77,912,744.86
  4. Step 4: Simplify right side
    119,624,739.76x = 12,864,395,643,434,606
  5. Step 5: Solve for x
    x = 12,864,395,643,434,606/119,624,739.76
  6. Step 6: Final answer
    x = 107,539,591.47

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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.