Home / 381,271,138.50-526,125,295.80-213,975,089.40

Finding the Fourth Proportional to 381,271,138.50, 526,125,295.80 and 213,975,089.40

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Solution

The fourth proportional to 381,271,138.50, 526,125,295.80 and 213,975,089.40 is: 295,269,418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,271,138.50 : 526,125,295.80 = 213,975,089.40 : x
  2. Step 2: Convert to fraction form
    381,271,138.50/526,125,295.80 = 213,975,089.40/x
  3. Step 3: Cross multiply
    381,271,138.50x = 526,125,295.80 × 213,975,089.40
  4. Step 4: Simplify right side
    381,271,138.50x = 112,577,707,204,406,448
  5. Step 5: Solve for x
    x = 112,577,707,204,406,448/381,271,138.50
  6. Step 6: Final answer
    x = 295,269,418.10

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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.