Home / 215,784,639.80-323,676,959.70-123,573,721.40

Finding the Fourth Proportional to 215,784,639.80, 323,676,959.70 and 123,573,721.40

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Solution

The fourth proportional to 215,784,639.80, 323,676,959.70 and 123,573,721.40 is: 185,360,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,784,639.80 : 323,676,959.70 = 123,573,721.40 : x
  2. Step 2: Convert to fraction form
    215,784,639.80/323,676,959.70 = 123,573,721.40/x
  3. Step 3: Cross multiply
    215,784,639.80x = 323,676,959.70 × 123,573,721.40
  4. Step 4: Simplify right side
    215,784,639.80x = 39,997,966,441,566,832
  5. Step 5: Solve for x
    x = 39,997,966,441,566,832/215,784,639.80
  6. Step 6: Final answer
    x = 185,360,582.10

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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.