Home / 384,612,986.94-530,767,769.67-208,400,935.58

Finding the Fourth Proportional to 384,612,986.94, 530,767,769.67 and 208,400,935.58

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Solution

The fourth proportional to 384,612,986.94, 530,767,769.67 and 208,400,935.58 is: 287,594,292.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,612,986.94 : 530,767,769.67 = 208,400,935.58 : x
  2. Step 2: Convert to fraction form
    384,612,986.94/530,767,769.67 = 208,400,935.58/x
  3. Step 3: Cross multiply
    384,612,986.94x = 530,767,769.67 × 208,400,935.58
  4. Step 4: Simplify right side
    384,612,986.94x = 110,612,499,776,264,880
  5. Step 5: Solve for x
    x = 110,612,499,776,264,880/384,612,986.94
  6. Step 6: Final answer
    x = 287,594,292.27

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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.