Home / 280,221,173.07-386,729,122.01-156,485,754.51

Finding the Fourth Proportional to 280,221,173.07, 386,729,122.01 and 156,485,754.51

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Solution

The fourth proportional to 280,221,173.07, 386,729,122.01 and 156,485,754.51 is: 215,963,689.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,221,173.07 : 386,729,122.01 = 156,485,754.51 : x
  2. Step 2: Convert to fraction form
    280,221,173.07/386,729,122.01 = 156,485,754.51/x
  3. Step 3: Cross multiply
    280,221,173.07x = 386,729,122.01 × 156,485,754.51
  4. Step 4: Simplify right side
    280,221,173.07x = 60,517,598,448,724,696
  5. Step 5: Solve for x
    x = 60,517,598,448,724,696/280,221,173.07
  6. Step 6: Final answer
    x = 215,963,689.63

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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.