Home / 272,735,057.04-409,163,036.76-78,631,324.80

Finding the Fourth Proportional to 272,735,057.04, 409,163,036.76 and 78,631,324.80

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Solution

The fourth proportional to 272,735,057.04, 409,163,036.76 and 78,631,324.80 is: 117,964,415.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,735,057.04 : 409,163,036.76 = 78,631,324.80 : x
  2. Step 2: Convert to fraction form
    272,735,057.04/409,163,036.76 = 78,631,324.80/x
  3. Step 3: Cross multiply
    272,735,057.04x = 409,163,036.76 × 78,631,324.80
  4. Step 4: Simplify right side
    272,735,057.04x = 32,173,031,639,629,896
  5. Step 5: Solve for x
    x = 32,173,031,639,629,896/272,735,057.04
  6. Step 6: Final answer
    x = 117,964,415.68

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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.