Home / 500,280,403.27-690,387,021.97-277,276,482.44

Finding the Fourth Proportional to 500,280,403.27, 690,387,021.97 and 277,276,482.44

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Solution

The fourth proportional to 500,280,403.27, 690,387,021.97 and 277,276,482.44 is: 382,641,582.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,280,403.27 : 690,387,021.97 = 277,276,482.44 : x
  2. Step 2: Convert to fraction form
    500,280,403.27/690,387,021.97 = 277,276,482.44/x
  3. Step 3: Cross multiply
    500,280,403.27x = 690,387,021.97 × 277,276,482.44
  4. Step 4: Simplify right side
    500,280,403.27x = 191,428,084,973,308,032
  5. Step 5: Solve for x
    x = 191,428,084,973,308,032/500,280,403.27
  6. Step 6: Final answer
    x = 382,641,582.05

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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.