Home / 272,986,668.18-409,439,639.80-100,423,125.36

Finding the Fourth Proportional to 272,986,668.18, 409,439,639.80 and 100,423,125.36

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Solution

The fourth proportional to 272,986,668.18, 409,439,639.80 and 100,423,125.36 is: 150,619,839.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,986,668.18 : 409,439,639.80 = 100,423,125.36 : x
  2. Step 2: Convert to fraction form
    272,986,668.18/409,439,639.80 = 100,423,125.36/x
  3. Step 3: Cross multiply
    272,986,668.18x = 409,439,639.80 × 100,423,125.36
  4. Step 4: Simplify right side
    272,986,668.18x = 41,117,208,274,988,648
  5. Step 5: Solve for x
    x = 41,117,208,274,988,648/272,986,668.18
  6. Step 6: Final answer
    x = 150,619,839.97

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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.