Home / 758,454,087.86-1,137,681,134.52-213,195,621.86

Finding the Fourth Proportional to 758,454,087.86, 1,137,681,134.52 and 213,195,621.86

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Solution

The fourth proportional to 758,454,087.86, 1,137,681,134.52 and 213,195,621.86 is: 319,793,433.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,454,087.86 : 1,137,681,134.52 = 213,195,621.86 : x
  2. Step 2: Convert to fraction form
    758,454,087.86/1,137,681,134.52 = 213,195,621.86/x
  3. Step 3: Cross multiply
    758,454,087.86x = 1,137,681,134.52 × 213,195,621.86
  4. Step 4: Simplify right side
    758,454,087.86x = 242,548,636,952,381,728
  5. Step 5: Solve for x
    x = 242,548,636,952,381,728/758,454,087.86
  6. Step 6: Final answer
    x = 319,793,433.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.