Home / 279,936,116.52-386,311,270.50-156,169,412.52

Finding the Fourth Proportional to 279,936,116.52, 386,311,270.50 and 156,169,412.52

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Solution

The fourth proportional to 279,936,116.52, 386,311,270.50 and 156,169,412.52 is: 215,513,471.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,116.52 : 386,311,270.50 = 156,169,412.52 : x
  2. Step 2: Convert to fraction form
    279,936,116.52/386,311,270.50 = 156,169,412.52/x
  3. Step 3: Cross multiply
    279,936,116.52x = 386,311,270.50 × 156,169,412.52
  4. Step 4: Simplify right side
    279,936,116.52x = 60,330,004,163,839,808
  5. Step 5: Solve for x
    x = 60,330,004,163,839,808/279,936,116.52
  6. Step 6: Final answer
    x = 215,513,471.12

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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.