Home / 500,280,209.94-690,386,755.23-277,276,288.89

Finding the Fourth Proportional to 500,280,209.94, 690,386,755.23 and 277,276,288.89

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Solution

The fourth proportional to 500,280,209.94, 690,386,755.23 and 277,276,288.89 is: 382,641,314.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,280,209.94 : 690,386,755.23 = 277,276,288.89 : x
  2. Step 2: Convert to fraction form
    500,280,209.94/690,386,755.23 = 277,276,288.89/x
  3. Step 3: Cross multiply
    500,280,209.94x = 690,386,755.23 × 277,276,288.89
  4. Step 4: Simplify right side
    500,280,209.94x = 191,427,877,388,983,200
  5. Step 5: Solve for x
    x = 191,427,877,388,983,200/500,280,209.94
  6. Step 6: Final answer
    x = 382,641,314.98

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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.