Home / 239,698,636.36-330,689,996.72-139,209,966.72

Finding the Fourth Proportional to 239,698,636.36, 330,689,996.72 and 139,209,966.72

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Solution

The fourth proportional to 239,698,636.36, 330,689,996.72 and 139,209,966.72 is: 192,055,091.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,698,636.36 : 330,689,996.72 = 139,209,966.72 : x
  2. Step 2: Convert to fraction form
    239,698,636.36/330,689,996.72 = 139,209,966.72/x
  3. Step 3: Cross multiply
    239,698,636.36x = 330,689,996.72 × 139,209,966.72
  4. Step 4: Simplify right side
    239,698,636.36x = 46,035,343,438,028,112
  5. Step 5: Solve for x
    x = 46,035,343,438,028,112/239,698,636.36
  6. Step 6: Final answer
    x = 192,055,091.08

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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.