Home / 165,429,128.80-248,153,024.40-50,417,423.20

Finding the Fourth Proportional to 165,429,128.80, 248,153,024.40 and 50,417,423.20

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Solution

The fourth proportional to 165,429,128.80, 248,153,024.40 and 50,417,423.20 is: 75,628,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,429,128.80 : 248,153,024.40 = 50,417,423.20 : x
  2. Step 2: Convert to fraction form
    165,429,128.80/248,153,024.40 = 50,417,423.20/x
  3. Step 3: Cross multiply
    165,429,128.80x = 248,153,024.40 × 50,417,423.20
  4. Step 4: Simplify right side
    165,429,128.80x = 12,511,236,049,534,728
  5. Step 5: Solve for x
    x = 12,511,236,049,534,728/165,429,128.80
  6. Step 6: Final answer
    x = 75,628,978.65

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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.