Home / 157,469,439.80-236,204,159.70-128,748,006.20

Finding the Fourth Proportional to 157,469,439.80, 236,204,159.70 and 128,748,006.20

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Solution

The fourth proportional to 157,469,439.80, 236,204,159.70 and 128,748,006.20 is: 193,122,009.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,469,439.80 : 236,204,159.70 = 128,748,006.20 : x
  2. Step 2: Convert to fraction form
    157,469,439.80/236,204,159.70 = 128,748,006.20/x
  3. Step 3: Cross multiply
    157,469,439.80x = 236,204,159.70 × 128,748,006.20
  4. Step 4: Simplify right side
    157,469,439.80x = 30,410,814,617,521,388
  5. Step 5: Solve for x
    x = 30,410,814,617,521,388/157,469,439.80
  6. Step 6: Final answer
    x = 193,122,009.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.