Home / 405,808,512.84-559,670,329.44-282,344,139.72

Finding the Fourth Proportional to 405,808,512.84, 559,670,329.44 and 282,344,139.72

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Solution

The fourth proportional to 405,808,512.84, 559,670,329.44 and 282,344,139.72 is: 389,394,585.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,808,512.84 : 559,670,329.44 = 282,344,139.72 : x
  2. Step 2: Convert to fraction form
    405,808,512.84/559,670,329.44 = 282,344,139.72/x
  3. Step 3: Cross multiply
    405,808,512.84x = 559,670,329.44 × 282,344,139.72
  4. Step 4: Simplify right side
    405,808,512.84x = 158,019,637,692,545,824
  5. Step 5: Solve for x
    x = 158,019,637,692,545,824/405,808,512.84
  6. Step 6: Final answer
    x = 389,394,585.61

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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.