Home / 500,280,419.52-690,387,044.40-277,276,498.70

Finding the Fourth Proportional to 500,280,419.52, 690,387,044.40 and 277,276,498.70

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Solution

The fourth proportional to 500,280,419.52, 690,387,044.40 and 277,276,498.70 is: 382,641,604.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,280,419.52 : 690,387,044.40 = 277,276,498.70 : x
  2. Step 2: Convert to fraction form
    500,280,419.52/690,387,044.40 = 277,276,498.70/x
  3. Step 3: Cross multiply
    500,280,419.52x = 690,387,044.40 × 277,276,498.70
  4. Step 4: Simplify right side
    500,280,419.52x = 191,428,102,415,621,504
  5. Step 5: Solve for x
    x = 191,428,102,415,621,504/500,280,419.52
  6. Step 6: Final answer
    x = 382,641,604.48

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1.5x scale

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.