Home / 272,242,979.40-408,523,901.40-99,737,230.80

Finding the Fourth Proportional to 272,242,979.40, 408,523,901.40 and 99,737,230.80

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Solution

The fourth proportional to 272,242,979.40, 408,523,901.40 and 99,737,230.80 is: 149,664,254.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,242,979.40 : 408,523,901.40 = 99,737,230.80 : x
  2. Step 2: Convert to fraction form
    272,242,979.40/408,523,901.40 = 99,737,230.80/x
  3. Step 3: Cross multiply
    272,242,979.40x = 408,523,901.40 × 99,737,230.80
  4. Step 4: Simplify right side
    272,242,979.40x = 40,745,042,641,248,240
  5. Step 5: Solve for x
    x = 40,745,042,641,248,240/272,242,979.40
  6. Step 6: Final answer
    x = 149,664,254.82

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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.