Home / 154,668,855.71-214,005,079.92-134,863,890.50

Finding the Fourth Proportional to 154,668,855.71, 214,005,079.92 and 134,863,890.50

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Solution

The fourth proportional to 154,668,855.71, 214,005,079.92 and 134,863,890.50 is: 186,602,257.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,668,855.71 : 214,005,079.92 = 134,863,890.50 : x
  2. Step 2: Convert to fraction form
    154,668,855.71/214,005,079.92 = 134,863,890.50/x
  3. Step 3: Cross multiply
    154,668,855.71x = 214,005,079.92 × 134,863,890.50
  4. Step 4: Simplify right side
    154,668,855.71x = 28,861,557,665,815,384
  5. Step 5: Solve for x
    x = 28,861,557,665,815,384/154,668,855.71
  6. Step 6: Final answer
    x = 186,602,257.66

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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.