Home / 280,269,339.05-386,764,191.41-154,818,835.07

Finding the Fourth Proportional to 280,269,339.05, 386,764,191.41 and 154,818,835.07

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Solution

The fourth proportional to 280,269,339.05, 386,764,191.41 and 154,818,835.07 is: 213,645,851.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,269,339.05 : 386,764,191.41 = 154,818,835.07 : x
  2. Step 2: Convert to fraction form
    280,269,339.05/386,764,191.41 = 154,818,835.07/x
  3. Step 3: Cross multiply
    280,269,339.05x = 386,764,191.41 × 154,818,835.07
  4. Step 4: Simplify right side
    280,269,339.05x = 59,878,381,558,178,784
  5. Step 5: Solve for x
    x = 59,878,381,558,178,784/280,269,339.05
  6. Step 6: Final answer
    x = 213,645,851.39

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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.