Home / 280,492,553.28-387,118,176.08-161,412,698.28

Finding the Fourth Proportional to 280,492,553.28, 387,118,176.08 and 161,412,698.28

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Solution

The fourth proportional to 280,492,553.28, 387,118,176.08 and 161,412,698.28 is: 222,771,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,492,553.28 : 387,118,176.08 = 161,412,698.28 : x
  2. Step 2: Convert to fraction form
    280,492,553.28/387,118,176.08 = 161,412,698.28/x
  3. Step 3: Cross multiply
    280,492,553.28x = 387,118,176.08 × 161,412,698.28
  4. Step 4: Simplify right side
    280,492,553.28x = 62,485,789,354,304,952
  5. Step 5: Solve for x
    x = 62,485,789,354,304,952/280,492,553.28
  6. Step 6: Final answer
    x = 222,771,651.60

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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.