Home / 239,580,370.50-330,620,911.05-129,572,083.38

Finding the Fourth Proportional to 239,580,370.50, 330,620,911.05 and 129,572,083.38

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Solution

The fourth proportional to 239,580,370.50, 330,620,911.05 and 129,572,083.38 is: 178,809,474.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,580,370.50 : 330,620,911.05 = 129,572,083.38 : x
  2. Step 2: Convert to fraction form
    239,580,370.50/330,620,911.05 = 129,572,083.38/x
  3. Step 3: Cross multiply
    239,580,370.50x = 330,620,911.05 × 129,572,083.38
  4. Step 4: Simplify right side
    239,580,370.50x = 42,839,240,253,742,160
  5. Step 5: Solve for x
    x = 42,839,240,253,742,160/239,580,370.50
  6. Step 6: Final answer
    x = 178,809,474.93

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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.