Home / 156,009,660.80-234,014,491.20-75,388,092.80

Finding the Fourth Proportional to 156,009,660.80, 234,014,491.20 and 75,388,092.80

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Solution

The fourth proportional to 156,009,660.80, 234,014,491.20 and 75,388,092.80 is: 113,082,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,009,660.80 : 234,014,491.20 = 75,388,092.80 : x
  2. Step 2: Convert to fraction form
    156,009,660.80/234,014,491.20 = 75,388,092.80/x
  3. Step 3: Cross multiply
    156,009,660.80x = 234,014,491.20 × 75,388,092.80
  4. Step 4: Simplify right side
    156,009,660.80x = 17,641,906,179,130,382
  5. Step 5: Solve for x
    x = 17,641,906,179,130,382/156,009,660.80
  6. Step 6: Final answer
    x = 113,082,139.20

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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.