Home / 119,782,928.28-165,300,939-64,778,784.78

Finding the Fourth Proportional to 119,782,928.28, 165,300,939 and 64,778,784.78

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Solution

The fourth proportional to 119,782,928.28, 165,300,939 and 64,778,784.78 is: 89,394,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,782,928.28 : 165,300,939 = 64,778,784.78 : x
  2. Step 2: Convert to fraction form
    119,782,928.28/165,300,939 = 64,778,784.78/x
  3. Step 3: Cross multiply
    119,782,928.28x = 165,300,939 × 64,778,784.78
  4. Step 4: Simplify right side
    119,782,928.28x = 10,707,993,951,412,908
  5. Step 5: Solve for x
    x = 10,707,993,951,412,908/119,782,928.28
  6. Step 6: Final answer
    x = 89,394,992.30

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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.