Home / 139,732,262.36-209,329,760.53-78,134,596.35

Finding the Fourth Proportional to 139,732,262.36, 209,329,760.53 and 78,134,596.35

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Solution

The fourth proportional to 139,732,262.36, 209,329,760.53 and 78,134,596.35 is: 117,051,682.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,732,262.36 : 209,329,760.53 = 78,134,596.35 : x
  2. Step 2: Convert to fraction form
    139,732,262.36/209,329,760.53 = 78,134,596.35/x
  3. Step 3: Cross multiply
    139,732,262.36x = 209,329,760.53 × 78,134,596.35
  4. Step 4: Simplify right side
    139,732,262.36x = 16,355,896,342,365,610
  5. Step 5: Solve for x
    x = 16,355,896,342,365,610/139,732,262.36
  6. Step 6: Final answer
    x = 117,051,682.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.