Home / 128,118,130.20-192,158,532.90-37,232,242.20

Finding the Fourth Proportional to 128,118,130.20, 192,158,532.90 and 37,232,242.20

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Solution

The fourth proportional to 128,118,130.20, 192,158,532.90 and 37,232,242.20 is: 55,842,939.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,118,130.20 : 192,158,532.90 = 37,232,242.20 : x
  2. Step 2: Convert to fraction form
    128,118,130.20/192,158,532.90 = 37,232,242.20/x
  3. Step 3: Cross multiply
    128,118,130.20x = 192,158,532.90 × 37,232,242.20
  4. Step 4: Simplify right side
    128,118,130.20x = 7,154,493,037,729,469
  5. Step 5: Solve for x
    x = 7,154,493,037,729,469/128,118,130.20
  6. Step 6: Final answer
    x = 55,842,939.84

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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.