Home / 239,167,319.90-330,050,905.54-129,159,032.90

Finding the Fourth Proportional to 239,167,319.90, 330,050,905.54 and 129,159,032.90

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Solution

The fourth proportional to 239,167,319.90, 330,050,905.54 and 129,159,032.90 is: 178,239,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,167,319.90 : 330,050,905.54 = 129,159,032.90 : x
  2. Step 2: Convert to fraction form
    239,167,319.90/330,050,905.54 = 129,159,032.90/x
  3. Step 3: Cross multiply
    239,167,319.90x = 330,050,905.54 × 129,159,032.90
  4. Step 4: Simplify right side
    239,167,319.90x = 42,629,055,765,342,504
  5. Step 5: Solve for x
    x = 42,629,055,765,342,504/239,167,319.90
  6. Step 6: Final answer
    x = 178,239,467.60

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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.