Home / 387,306,384.75-534,494,012.61-211,105,792.59

Finding the Fourth Proportional to 387,306,384.75, 534,494,012.61 and 211,105,792.59

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Solution

The fourth proportional to 387,306,384.75, 534,494,012.61 and 211,105,792.59 is: 291,332,099.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,306,384.75 : 534,494,012.61 = 211,105,792.59 : x
  2. Step 2: Convert to fraction form
    387,306,384.75/534,494,012.61 = 211,105,792.59/x
  3. Step 3: Cross multiply
    387,306,384.75x = 534,494,012.61 × 211,105,792.59
  4. Step 4: Simplify right side
    387,306,384.75x = 112,834,782,166,643,504
  5. Step 5: Solve for x
    x = 112,834,782,166,643,504/387,306,384.75
  6. Step 6: Final answer
    x = 291,332,099.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.