Home / 384,552,155.84-530,679,890.70-215,006,360.40

Finding the Fourth Proportional to 384,552,155.84, 530,679,890.70 and 215,006,360.40

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Solution

The fourth proportional to 384,552,155.84, 530,679,890.70 and 215,006,360.40 is: 296,707,611.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,552,155.84 : 530,679,890.70 = 215,006,360.40 : x
  2. Step 2: Convert to fraction form
    384,552,155.84/530,679,890.70 = 215,006,360.40/x
  3. Step 3: Cross multiply
    384,552,155.84x = 530,679,890.70 × 215,006,360.40
  4. Step 4: Simplify right side
    384,552,155.84x = 114,099,551,836,876,816
  5. Step 5: Solve for x
    x = 114,099,551,836,876,816/384,552,155.84
  6. Step 6: Final answer
    x = 296,707,611.97

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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.