Home / 513,105,302.70-769,657,954.05-448,535,221.20

Finding the Fourth Proportional to 513,105,302.70, 769,657,954.05 and 448,535,221.20

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Solution

The fourth proportional to 513,105,302.70, 769,657,954.05 and 448,535,221.20 is: 672,802,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,105,302.70 : 769,657,954.05 = 448,535,221.20 : x
  2. Step 2: Convert to fraction form
    513,105,302.70/769,657,954.05 = 448,535,221.20/x
  3. Step 3: Cross multiply
    513,105,302.70x = 769,657,954.05 × 448,535,221.20
  4. Step 4: Simplify right side
    513,105,302.70x = 345,218,700,668,156,160
  5. Step 5: Solve for x
    x = 345,218,700,668,156,160/513,105,302.70
  6. Step 6: Final answer
    x = 672,802,831.80

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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.