Home / 239,698,630.35-330,689,988.45-139,209,960.69

Finding the Fourth Proportional to 239,698,630.35, 330,689,988.45 and 139,209,960.69

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Solution

The fourth proportional to 239,698,630.35, 330,689,988.45 and 139,209,960.69 is: 192,055,082.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,698,630.35 : 330,689,988.45 = 139,209,960.69 : x
  2. Step 2: Convert to fraction form
    239,698,630.35/330,689,988.45 = 139,209,960.69/x
  3. Step 3: Cross multiply
    239,698,630.35x = 330,689,988.45 × 139,209,960.69
  4. Step 4: Simplify right side
    239,698,630.35x = 46,035,340,292,701,048
  5. Step 5: Solve for x
    x = 46,035,340,292,701,048/239,698,630.35
  6. Step 6: Final answer
    x = 192,055,082.77

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1.5x scale

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.