Home / 239,429,903.36-330,413,120.50-129,421,616.36

Finding the Fourth Proportional to 239,429,903.36, 330,413,120.50 and 129,421,616.36

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Solution

The fourth proportional to 239,429,903.36, 330,413,120.50 and 129,421,616.36 is: 178,601,751.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,429,903.36 : 330,413,120.50 = 129,421,616.36 : x
  2. Step 2: Convert to fraction form
    239,429,903.36/330,413,120.50 = 129,421,616.36/x
  3. Step 3: Cross multiply
    239,429,903.36x = 330,413,120.50 × 129,421,616.36
  4. Step 4: Simplify right side
    239,429,903.36x = 42,762,600,122,163,928
  5. Step 5: Solve for x
    x = 42,762,600,122,163,928/239,429,903.36
  6. Step 6: Final answer
    x = 178,601,751.58

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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.