Home / 280,805,092.56-387,496,848.78-153,643,019.22

Finding the Fourth Proportional to 280,805,092.56, 387,496,848.78 and 153,643,019.22

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Solution

The fourth proportional to 280,805,092.56, 387,496,848.78 and 153,643,019.22 is: 212,019,608.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,805,092.56 : 387,496,848.78 = 153,643,019.22 : x
  2. Step 2: Convert to fraction form
    280,805,092.56/387,496,848.78 = 153,643,019.22/x
  3. Step 3: Cross multiply
    280,805,092.56x = 387,496,848.78 × 153,643,019.22
  4. Step 4: Simplify right side
    280,805,092.56x = 59,536,185,784,794,968
  5. Step 5: Solve for x
    x = 59,536,185,784,794,968/280,805,092.56
  6. Step 6: Final answer
    x = 212,019,608.48

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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.