Home / 119,782,900.20-165,300,900.48-64,778,756.70

Finding the Fourth Proportional to 119,782,900.20, 165,300,900.48 and 64,778,756.70

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Solution

The fourth proportional to 119,782,900.20, 165,300,900.48 and 64,778,756.70 is: 89,394,953.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,782,900.20 : 165,300,900.48 = 64,778,756.70 : x
  2. Step 2: Convert to fraction form
    119,782,900.20/165,300,900.48 = 64,778,756.70/x
  3. Step 3: Cross multiply
    119,782,900.20x = 165,300,900.48 × 64,778,756.70
  4. Step 4: Simplify right side
    119,782,900.20x = 10,707,986,814,484,834
  5. Step 5: Solve for x
    x = 10,707,986,814,484,834/119,782,900.20
  6. Step 6: Final answer
    x = 89,394,953.68

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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.