Home / 388,250,091.84-535,798,346.98-229,616,198.91

Finding the Fourth Proportional to 388,250,091.84, 535,798,346.98 and 229,616,198.91

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Solution

The fourth proportional to 388,250,091.84, 535,798,346.98 and 229,616,198.91 is: 316,878,173.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,250,091.84 : 535,798,346.98 = 229,616,198.91 : x
  2. Step 2: Convert to fraction form
    388,250,091.84/535,798,346.98 = 229,616,198.91/x
  3. Step 3: Cross multiply
    388,250,091.84x = 535,798,346.98 × 229,616,198.91
  4. Step 4: Simplify right side
    388,250,091.84x = 123,027,979,813,129,888
  5. Step 5: Solve for x
    x = 123,027,979,813,129,888/388,250,091.84
  6. Step 6: Final answer
    x = 316,878,173.12

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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.